Scholarly article on topic 'Keratosis Lichenoides Chronica – a Case Report and Literature Review'

Keratosis Lichenoides Chronica – a Case Report and Literature Review Academic research paper on "Clinical medicine"

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Academic research paper on topic "Keratosis Lichenoides Chronica – a Case Report and Literature Review"

M. Paravina et al.

Serbian Journal of Dermatology and Venereology 2014; 6 (3): 120-137_Keratosis lichenoides chronica

DOI: 10.2478/sjdv-20l4-0011

Keratosis Lichenoides Chronica - a Case Report and Literature Review


1Faculty of Medicine, University of Nis, Serbia 2Military Hospital of Nis, Serbia 'Serbian Armed Forces, Batajnica, Serbia

4Clinic of Dermatovenereology Diseases, Clinical Center of Vojvodina, Faculty of Medicine, University of Novi Sad Correspondence: Mirjana Paravina, E-mail: DE GRUYTER

UDC 616.5-003.87:616.516


Keratosis lichenoides chronica represents a distinct entity, a rare disease of unknown etiology and pathogenesis, with clinical manifestations which, although typical, require extensive differential diagnosis. The course of the disease is chronic, progressive, and it is resistant to various treatment options, so despite variations in the clinical picture it is really easier to diagnose than to treat. This is a case report of a male patient in whom the diagnosis of keratosis lichenoides chronica was based on typical clinical picture, repeated biopsies and histopathological findings, course of the disease and poor response to any therapy.

Key words

Keratosis; Lichenoid Eruptions; Signs and Symptoms; Disease Progression; Diagnosis; Diagnosis, Differential; Treatment Outcome; Review

The idea for this paper on keratosis lichenoides chronica (KLC) was born after the first visit of a patient with an unusual clinical picture resembling both psoriasis and lichen planus, but also distinct from them, posing a diagnostic and therapeutic dilemma. After a consultation with Prof. Danilo Stevanovic, whom we hereby wish to thank, and repeated histopathological examinations, the diagnosis of keratosis lichenoides chronica was confirmed. Papers of Boer (1), Massi et al. (2) and Ackerman et al. (3) have encouraged us to continue our analysis of published papers.

Case report

Case history

We report a 40-year old man who developed skin lesions on the trunk and extremities more than 10 years earlier: asymptomatic, symmetrically distributed

linear and reticular red to purple papules with white scaly surface. Before the appearance of skin lesions, the patient's history was unremarkable and he denied taking any medications. He was treated under the diagnosis of psoriasis vulgaris, and lichen verrucosus. In 2014, he underwent phimosis surgery. There was no family history of skin conditions.


On admission, the patient presented with symmetrical generalized eruptions of erythemolivid to dark livid papules and nodules with a keratotic surface, in a solitary, linear or reticular pattern on the lower lateral parts of the trunk and along the extremities (Figures 1-3); the infiltrated lesions were prominent, verrucous and hyperkeratotic. Mild erythematosquamous lesions were present on the face. Solitary erythematous papules on erythematous base

Figure 1. Skin lesions on the trunk and arms

were seen on the dorsal aspects of the feet (Figure 4), as well as palmoplantar focal hyperkeratosis. Hyperkeratotic papules were found on the preputium and scrotum preventing normal retraction over the glans (Figures 5-7).

Laboratory and histopathological tests Relevant laboratory tests, including serologic tests for human immunodeficiency virus type 1 (HIV-1), hepatitis viruses and syphilis were within normal limits.

Figure 3. Lesions on the posterior aspects of lower extremities

Figure 2. Lesions on the lateral aspects of the trunk

Figure 4. Lesions on the dorsal surface of the feet

Histopathological analysis of skin specimens was repeated several times: in 2004, findings pointed to psoriasiform dermatitis and later to lichenoid dermatitis; in 2009, they pointed to hypertrophic lichen planus, and in 2010 to pityriasis lichenoides. Histopathological analysis of the lower limb skin specimens performed in 2009 showed: irregular epidermal acanthosis, variable atrophy, moderate ortho-parakeratosis; telangiectasias and both superficial and deep inflammatory infiltrates in the dermis (Figure 8). Higher microscopy magnification showed vacuolar degeneration of the basal layer and distinct hyaline bodies ("civatte bodies") (Figure 9). Histopathological analysis of the preputium tissue was performed in 2014: epidermis showed irregular acanthosis, hyperkeratosis and focal parakeratosis; telangiectasia and abundant inflammatory infiltrates in the dermis (Figure 10). Higher magnification revealed irregular acanthosis, hyperkeratosis and focal follicular parakeratosis, vacuolar alteration of the basal layer of the epidermis with telangiectasia and abundant inflammatory infiltrates including lymphocytes and plasma cells in the upper dermis (Figures 11, 12).

Figure 5. Penile lesions prior surgery

Figure 6. Penile and scrotal lesions prior surgery

Diagnosis and therapy

The diagnosis of keratosis lichenoides chronica was based on typical clinical picture, repeated biopsies and histopathological findings, course of the disease and poor response to any therapy. Systemic corticosteroid therapy, UVB irradiation, topical corticosteroids and salicylic acid did not provide satisfactory results. The use of acitretin, at an initial dose of 0.3 mg/kg/bw which was increased to 1 mg/kg/bw, showed minimal therapeutic effects (Figures 13, 14).

Literature review

Keratosis lichenoides chronica is a rare, chronic, and progressive dermatosis of unknown origin (4, 5), characterized mostly by asymptomatic, papular or nodular lesions, in a linear or reticular pattern, symmetrically distributed on the trunk and extremities; facial lesions resemble seborrheic dermatitis or rosacea, but they may involve palms, soles, nails as well as oral, pharyngeal, laryngeal, ocular and genital mucous membranes (6 - 13).

Figure 7. Penile and scrotal lesions after surgery

Figure 8. Histopathological finding from 2009; H&E, x 50

Figure 9. Histopathological finding from 2009; H&E, x 200

Figure 10. Histopathological finding from 2014; H&E, x 50

Figure 11. Histopathological finding from 2014; H&E, x 100

Figure 12. Histopathological finding from 2014; H&E, x 200

The first description of a patient with the clinical picture of KLC was given by Kaposi in 1886 (14) under the diagnosis of "lichen ruber moniliformis". However, in 1895, two patients with similar lesions were diagnosed with "lichen ruber acuminatus (verrucosus et reticularis)" (15). Further confusion

Figure 13. Skin lesions before acitretin therapy

Figure 14. Skin lesions after acitretin therapy

over the name of the disease occurred in 1938 (16) when Nekam reported Kaposi's case from 1895 as "porokeratosis striata lichenoides." Since 1972, the term "keratosis lichenoides chronica", suggested by Margolis (17) for patients with a typical clinical picture, has been generally accepted for this condition, but in the meantime there were new terms as well. There are papers with terms "lichenoid tri-keratosis" (18) "keratosis lichenoides striee" (19), and "dermatose papulohyperkeratosic en striée" (20).

Papers published on keratosis lichenoides chronica or synonyms from 1886 to 2014

To the best of our knowledge, in the last 128 years (1986 - 2014), 120 papers were published with keratosis lichenoides chronica or its synonyms as a topic (Table 1) (14 - 123).

In seven papers (26, 27, 29, 30, 60, 75, 93) KLC is referred to as Nekam's disease.

The etiology of the disease has not yet been identified. Mode of inheritance, influence of any other genetic alteration, relationship with any drugs or infection, has not been defined (1). The most common factors causing KLC as a variant of lichenoid drug eruption are antimalarials, antituberculosis agents (11, 20, 123), and tetanus antiserum (18); KLC may also be induced by mechanical skin damage, for example after trauma or skin transplantation (50, 84), or it is a cutaneous manifestation of toxoplasmosis (27).

The pathophysiology of KLC is not known (110). Some conditions associated with KLC, mentioned in the literature thus far, include appearance after drug-induced erythroderma (82), prolonged exposure to a source of heat (infrared radiation) (95); association with multiple eruptive keratoacanthoma-like lesions in patients with multiple myeloma (100), in patients with atypical sarcoidal granulomatous inflammation (107), or hypothyroidism (89), tuberculosis (10), kidney diseases, diabetes, lymphoma (81), toxoplasmosis (27), mycosis fungoides (78), multiple sclerosis (68) hepatitis (57, 70), lesions mimicking verrucous secondary syphilis (91), primary cutaneous anaplastic large cell lymphoma (122), atopic dermatitis (5, 10), allergic rhinitis, (3), and neurological diseases (11). However, significant association between KLC and internal diseases has not been established (87).

It has been a subject of controversy whether KLC is a distinctive inflammatory disease of the

Table 1. Papers published on keratosis lichenoides chronica or synonyms from 1886 to 2014

Diagnosis No. of papers Time period References

Lichen ruber moniliformis 4 1886-1955 14, 21-23

Lichen ruber acuminatus (verrucosus et reticularis) 1 1895 15

Lichen verrucosus et reticularis 5 1944-1984 24-28

Porokeratosis striata 3 1938-1983 16, 29, 30

Lichenoid trikeratosis 1 1974 18

Keratosis lichenoides striata 9 1974-1989 19, 31-38

Dermatose papulohyperkeratosic en striées 1 1970 20

Keratosis lichenoides chronica 89 1972-2014 1-4,6, 9-13, 17, 39-123

Total 120 1886-2014 14-123

skin or whether it represents a manifestation of another well-known disease, such as lichen planus, lupus erythematosus, or lichen simplex chronicus. These dilemmas have existed for years: whether KCL represents an inherited type of epidermolysis bullosa (54), a disseminated variant of inflammatory linear verrucous epidermal nevus (ILVEN) (71), a variant of lichen planus (10, 41, 50, 53, 74, 77, 97, 86, 99, 107), or a transition of lichen planus to KLC, due to an increase in the number of focuses (109). Strong similarity between KLC and lupus erythematosus has been established (120). Basically, the condition may have an authentic disease underlying, such as lichen planus, lupus erythematosus, psoriasis vulgaris, or pityriasis rubra pilaris, if pre-existing disease is associated with signs of rubbing and scratching (2). Signs of artificiality of lesions of keratosis lichenoides chronica are striking linear lesions and a tendency for places that are easy to reach for scratching and rubbing (3). Thus, some cases of KLC may be the consequence of persistent rubbing and scratching, while others may be caused by rubbing and scratching due to a pre-existing disease (lichen planus, discoid lupus erythematosus, pityriasis

rubra pilaris, psoriasis), which explains variations of histopathological findings (3).

However, it is an authentic pathological process (71), a distinct entity (1, 11), which is characterized by linear lesions, absence of Wickham's striae, long-term evolution, lack of response to corticosteroids (9), and differs from lichen planus, lupus erythematosus, pityriasis lichenoides, pityriasis rubra pilaris, psoriasis vulgaris, porokeratosis, mycosis fungoides, and porokeratosis variegata. KLC is generally considered a distinct dermatologic disease due to typical clinical and histopathological features (13).

Differential diagnosis includes lichen planus and lichen planopilaris, lupus erythematosus, pityriasis lichenoides, pityriasis rubra pilaris, psoriasis vulgaris, mycosis fungoides (78), lichenoid drug reactions (18), lichen hypertrophicus, parapsoriasis variegata, keratosis follicularis, epidermolysis bullosa pruriginosa, Reiter's and Kyrle's disease (5, 11, 53, 58, 98, 105, 117).

A full description of histopathological features of KLC was given by Böer (1): vaculoar alteration of keratinocytes along the dermo-epidermal junction;

numerous necrotic keratinocytes, sometimes in clusters, in surface epidermis and infundibular epidermis, especially in the lower parts; atrophy and sometimes erosion of epithelium in foci where there are many necrotic keratinocytes; irregular focal acanthosis; wedge-shaped hypergranulosis sometimes in zones of acanthosis; infundibular keratotic plugs of hair follicles and around acrosyringia; parakeratosis in staggered fashion; remnants of neutrophils in zones of parakeratosis; hypogranulosis beneath zones of parakeratosis; plasma cells in the infiltrate zones adjacent to erosions. Lichenoid infiltrate is found under the epidermis, often centered around an infundibulum or an acrosyringium; foreign body reaction is consequent to rupture of dilated infundibula and spewing of their contents into the dermis. Basically, it is a lichenoid dermatosis with irregular acanthosis, focal parakeratosis, variable atrophy, vacuolar degeneration of the basal layer and keratinocyte necrosis, chronic inflammatory infiltrate in the papillary dermis consisting lymphocytes, histiocytes, plasma cells and eosinophils and colloid bodies ("Civatte bodies") (67, 82, 86, 101, 107, 108, 110, 111, 113, 115, 120, 122).

KLC should be differentially distinguished from hypertrophic lichen planus: KLC is characterized by mild papillomatosis, focal parakeratosis, variable atrophy and epidermal acanthosis, vacuolar basal cell degeneration, superficial dermal telangiectasias; hyperkeratotic lichen (lichen verrucosus) is found in the epidermis and it is associated with compact orthokeratosis, papillomatosis, prominent irregular acanthosis and vacuolar basal cell degeneration.

In our patient, histopathological findings were consistent with KLC.

Due to a large number of conditions considered in the differential diagnosis and a possibility of comorbidity of two or more dermatoses (3), it sometimes happens that the patient actually suffers from a dermatosis other than KLC (1).

Patients reported under a controversial diagnosis of keratosis lichenoides chronica (KLC)/or synonyms in the period 1886 - 2005

After analyzing the available literature, Boer (1) wrote a critical review of studies published in the period from 1886 to 2005. He found that a certain number of patients included in these studies should have been diagnosed with keratosis lichenoides chronica,

no matter if they had characteristics of other similar diseases or if there was a lack of evidence for a reliable diagnosis (Table 2). According to Boer, out of the total number of patients reported from 1886 - 2005 under the controversial diagnosis of KLC or its synonym, there were 23 (34.33%) who suffered from other diseases, 20 (29.85%) with a lack of evidence for the diagnosis, while 24 (35.82%) patients suffered from keratosis lichenoides chronica, more or less certainly (Table 2) (1).

In his analysis, Boer argued that the diagnosis of KLC should be made only for patients presenting with at least two clinical and one histological feature: 1. chronic facial lesions reminiscent of seborrhoeic dermatitis; 2. tiny papules on the trunk and extremities, which assumed linear and reticulate shapes by way of confluence of lesions, with infundibulocentric papules and papules around acrosyringia; 3. histological feature: lichenoid dermatitis with numerous necrotic keratinocytes and parakeratosis. Among other characteristics, there may be mucosal involvement, including conjunctival hyperemia, but they are not indicative (1).

According to the findings of Boer (1), KLC affects men and women equally, mostly adults. Anamnestic data show that lesions often persist for years before diagnosis. The lesions are found on the face, extremities, especially on the acral regions, less often on the trunk, while mucous membranes are affected in 25% of patients. The lesions may be discrete, individual, linear or circular, atrophic, with erosions or crusts, forming keratotic papules or plaques. Pruritus is present in less than 20% of patients. Deviations from laboratory findings are nonspecific and are of no diagnostic value. The course of the disease is protracted, while complete resolution has never been reported.

Patients reported under a controversial diagnosis of keratosis lichenoides chronica (KLC)/or synonyms in the period 1886 - 2014

Although a review of the available literature revealed about 120 papers on KLC, certainly with a larger number of patients, Boer's analysis (1) shows that the actual number of patients suffering from KLC in the period from 1886 to 2014 cannot be determined with certainty.

In order to get information about the patients and characteristics of KLC, we have reviewed 98

Table 2. Patients reported under a controversial diagnosis of keratosis lichenoides chronica (KLC)/or synonyms

in the period 1886 - 2005*

Diagnosis* References Time period No. of patients

Adults Dermatitis atopica 70 1996 1

Lichen planus 57, 80, 84, 95 97 1989-2005 5

Porokeratosis 18 1974 1

Lupus erythematosus 27,28 1976, 1984 2

Lichen simplex 27, 43, 89 1976-2002 3

Subepidermal bullous dermatosis 54 1986 1

11,13, 25, 27, 29, 49,

Unclarified diagnosis 58, 62, 71, 72, 74, 76, 86, 94, 1954-2004 16

Keratosis lichenoides chronica (KLC) 24, 31,45, 48, 73, 77, 79, 96 1981-1999 8

Possible KLC 20, 38, 97 1970-2005 3

Probable KLC 16, 17, 18, 26, 27, 41, 47, 71, 91 1938- 2003 9

Total 49

Children Dermatitis atopica 15 1895 1

Lichen planus 12, 81, 85 1982/2001 3

Lupus erythematodes 46, 59 1981,1993 2

Subepidermal bullous dermatosis 40 1976 1

Lichen simplex 33 1997 1

Verrucae vulgaris 41 1995 1

ILVEN 71 1997 1

Unclear 44,60,71 1973-1993 4

KLC 59, 71 1993, 1997 2

Probable KLC 50 69 1996 1

Possible KLC 34 1983 1

Total 18

Adults + children 67

*, Böer A. 2006 (1); KCL, keratosis lichenoides chronica; ILVEN, inflammatory linear verrucous epidermal nevus

papers published in the available literature in the period from 1886 to 2014, including a total of 115 patients (Table 3). Adult patients in whom the disease began in childhood were grouped as children. The disease is more common in males. The male to female ratio was around 1.97: 1 with male predominance (in children and adults, the ratio was 1.62:1 and 2.17:1, respectively). According to our analysis, the average age of KLC onset was 37 years (in children and adults it was 15 and 47 years, respectively). According to data from 1995 (10), KLC was also more common in males (the male to female ratio was 1.35:1), usually affecting people aged between 20 and 40 years of age, with an average age of onset of 28,5 years (10). According to data from 2010, the age of disease onset was between the ages of 20 to 50 years (110). Clinical signs of the disease are most typical among adolescents and young adults (107). The fact that KLC is uncommon in pediatric population (63, 66, 90) is not fully in agreement with our findings. It would be more precise to claim that it is less common in children, considering the fact that in 31.48% of patients the onset of the disease was in childhood. The rarity of pediatric cases may be due to late diagnosis, rather than actual low incidence among children (90). KLC rarely affects several persons from the same family (59, 106); only 10 (8.70%) cases have been reported so far, all being affected in childhood, while congenital cases were described only in 4 (3.48%) patients (Table 3).

Table 3 shows that KLC lesions are most commonly found on the extremities, both in children and adults, whereas 40% of patients present with palmoplantar hyperkeratosis; facial lesions are more common in adults than in children; nail lesions are more common in adults, affecting over 30% of patients, presenting as yellow discoloration, thickening and longitudinal ridging of the nail plate and nail bed hyperkeratosis; oral lesions are more common in adults than in children; ocular lesions include blepharitis, conjunctivitis, anterior uveitis and iridicyclitis which affect both children and adults; genital lesions, including keratotic papules on the scrotum and penis, chronic balanitis and phimosis, have been reported in 9.88% of adults, but in children they have not been described; pruritus occurs in less than 20% of patients, both in children and adults (Table 3).

Facial reticular lichenoid eruptions (121), vascular variant of the disease with telangiectasia (57,

89), purpura (111), as well as unilateral distribution of lesions (64) have been reported in the literature, although less commonly (124).

Based on the analysis of reported cases of KLC in adults and children, Ruiz-Maldonado et al. (9) pointed out clearly defined several characteristics of the disease that only occur in patients in whom the disease started in childhood: occurrence of the disease in members of the same family (autosomal recessive inheritance); in children, lesions including erythematous purpuric macules always appear first on the face with subsequent hyperpigmentation; alopecia has only been described in children.

The disease proved to be resistant to various therapeutic regimes, both topical and systemic (107). The following therapeutic modalities proved to be inefficient: systemic and topical corticosteroids, systemic antimalarials, diaminodiphenylsulfone, tetracyclines, cyclosporine, methotrexate (90, 91). Various results were obtained with systemic administration of acitretin, isotretinoin, etretinate, psoralen ultraviolet A radiation (PUVA), retinoids combined with PUVA or with narrow-band ultraviolet B radiation (NB-UVB) (4), as well as topical calcipotriol (89, 98) and NB-UVB monotherapy (106). NB-UVB has proven more effective in the treatment of children than adults (117). Significant improvement has been achieved with photodynamic therapy (104) and treatment with efalizumab (107). According to Ghislain (87), PUVA therapy is the first line therapy for this rare disease. There are also reports on spontaneous improvement or complete spontaneous remission (62, 63). Table 4 shows results of treatment using various medications and physical therapeutic procedures in the period from 1886 -2014.

In 1938, Nekam (16) described a patient who had been reported by Kaposi in 1895 (15), even suggesting another term for the condition. We report a patient treated at our clinic since 2004 (119). He presented with genital lesions in 2014, and they were surgically resolved.


In our patient the diagnosis was based on typical clinical picture, repeated biopsies and histopathological findings, course of the disease and poor response to any therapy. Keratosis lichenoides chronica represents a distinct entity, a rare disease of unknown etiology

Table 3. Patients reported under a controversial diagnosis of keratosis lichenoides chronica (KLC)/or synonyms in the period 1886 - 2014

Keratosis lichenoides chronica Children Adults Total

Number of papers 25 (25.51%) 73 (74.49%) 98 (100%)

Number of patients 34 (29.57%) 81 (70.43%) 115 (100%)

Males 21 (61.76%) 50 (68.49%) 71 (66.36%)

Females 1 (38.24%) 23 (31.51%) 36 (33.64%)

Unrecorded sex 8 (6.96%) 8 (6.96%)

Male/Female 1,62 2,17 1,97

Median age (y) 15 47 37

Median age at onset (y) 1 35 24

Range of age at onset (y) Birth - 16 18 - 80 Birth- 80

Median duration of disease (y) 11 5 7

Range of disease duration (y) 0,3-49* 0.01- 48 0.3-49

Congenital cases 4 (11.76%) 0 (0.00%) 4 (3.48%)

Familial cases 10 (29.41%) 0 (0.00%) 10 (8.70%)

Initial site Face Extremities

Facial lesions Erythematous/purpuric Seborrheic-like/rosacea like

Face 30 (88.24%) 31 (38.27%) 61 (53.04%)

Extremities 19 (55.88%) 66 (81.48%) 85 (77.27%)

Trunk 9 (26.47%) 32 (39.51%) 41 (35.65%)

Dissemination 5 (14.71%) 8 (9.88%) 13 (11.30%)

Ocular lesions 4 (11.76%) 7 (8.64% 11 (9.57%)

Oral lesions 4 (11.76%( 22 (27.16%) 26 (22.61%)

Genital lesions 0 (0.00%) 8 (9.88%) 8 (6.96%)

Nail lesions 1 (2.94%) 29 (35.86%) 30 (26.09%)

Alopecia 5 (14.71%) 0 (0.00%) 5 (4.31%)

Pruritus 7 (20.59%) 10 (12.35%) 17 (14.78%)

Y, year; *, Adults with childhood onset were included in the group of children

Table 4. Treatment effects in patients with KLC treated in the period 1886 - 2014

Treatment effects Therapy Reference

No response X rays, Vitamin A 24

Topical steroids/retinoids/tar 6,45, 62,99,102, 108, 111, 117

Miscellaneous 11, 107,120

Dapsone, Calcipotriol 93,106

Acitretin, Griseofulvin, Corticosteroids 98

Topical and systemic steroids and PUVA 55

Systemic steroids, Sulphones, Methotrexate, Antimalarials, Irradiation, 1, 4, 98, 107


Partial improvement PUVA 6, 99

Calcipotriol 97

Acitretin 100,111, 119

Bath PUVA 101

PUVA + oral retinoids 107, 118


Sun exposure 106

Clinical improvement Oral corticosteroids 44,68

Levamosol 21

PUVA 30, 65 , 67, 87, 114

Oral retinoids 6, 9,22,23, 27,35, 49, 57, 63

Retinoids + PUVA 53, 67, 98

Calcipotriol 59

NB-UVB 11,122

Neotigason + bath Puva 43

Prednisolone 82

Cyclosporine 102,92

Photodynamic therapy 104

PUVA, Acitretin, Calcipotriol 108

Methotrexate 45

Sulphadiazine 40

Cotrimoxazol 40

Bath PUVA 66

Sun exposure 90

Topical tacrolimus 116

Complete resolution Tigason 31

Erythromycin 26

Etoposide 102

Efalizumab 107

Spontaneous resolution_62

PUVA, psoralen ultraviolet A irradiation; NB-UVB, narrow-band ultraviolet B irradiation

and pathogenesis, with clinical manifestations which, although typical, require extensive differential diagnosis. The course of the disease is chronic, progressive, and it is resistant to various treatment options, so despite variations in the clinical picture it is really easier to diagnose than to treat.


KLC - keratosis lichenoides chronica HIV-1 - human immunodeficiency virus type 1 ILVEN - inflammatory linear verrucous epidermal nevus

PUVA - psoralen ultraviolet A radiation NB-UVB - narrow-band ultraviolet B radiation


With great pleasure, we acknowledge our gratitude to Prof. Dr. Danilo Stevanovic, who helped us a great deal with the terminology used.


1. Boer A. Keratosis lichenoides chronica: proposal of a concept. Am J Dermatopathol 2006;28(3):260-75.

2. Massi D, Chiarelli C, Ackerman AB. What is keratosis lichenoides chronica? Keratosis lichenoides chronica is factitious! Dermatopathology: Practical & Conceptual 1997;3:293-304.

3. Ackerman AB, Chiarelli C, Massi D. Keratosis lichenoides chronica is factitious! Dermatopathology: Practical & Conceptual 1997;3(4).

4. Koseoglu RD, Sezer E, Yuksek J. Keratosis lichenoides chronica treated with acitretin plus narrowband ultraviolet B phototherapy. J Dermatol 2008;35:172-4.

5. Braun-Falco O, Plewig G, Wolff HH, Burgorf WHH. Dermatology. Berlin, Heidelberg: Springer-Verlag; 1991.

6. Douri T, Shawaf AZ. Keratosis lichenoides chronica: report of a new case with partial response to PUVA therapy. Dermatol Online J 2005;11(2):28.

7. Pittelkow MR, Daoud MS. Lichen planus. In: Wolf K, Goldsmith LA, Katz SI, Gilchrest BA, Paller IS, Leffell DJ, editors. Fitzpatricks Dermatology in Generale Medicine. 7th ed. New York: Mc Graw Hill Medical; 2008. p. 244-55.

8. Breathnach SM. Lichen planus and lichenoid disorders. In: Burns BY, Breathnacht S, Cox N, Griffiths C, editors. Rook's Textbook of Dermatology. 8th ed. Vol 2. Oxford: Wiley— Blackwell 2010. p. 41.1-41.28.

9. Ruiz-Maldonado R, Duran-McKinster C, Orozco-Covarrubias L, Saez-de-Ocariz M, Palacios-Lopez C. Keratosis lichenoides chronica in pediatric patients: a different disease? J Am Acad Dermatol 2007;56(2 Suppl):S1-5.

10. Masouye I, Saurat JH. Keratosis lichenoides chronica: the centenary of another Kaposi's disease. Dermatology 1995;191:188-92.

11. Braun-Falco O, Bieber T, Heider L. Chronic lichenoid keratosis: disease variant or disease entity? Hautarzt 1989;40:614-22.

12. Ryatt KS, Greenwood R, Cotterill JA. Keratosis lichenoides chronica. Br J Dermatol 1982;106:223-5.

13. Taberner R, Puig L, Fernandez-Figueras T, Alomar A. Keratosis lichenoides chronica. J Eur Acad Dermatol Venereol 2001;15:84-5.

14. Kaposi M. Lichen ruber moniliformis - Korallenschnurartiger lichen ruber. Vierteljahrsschrift für Dermatologie und Syphilis, Wien 1886;13:571-82.

15. Kaposi M. Lichen ruber acuminatus und lichen ruber planus. Arch Dermatol Syph 1895;31:1-32.

16. Nekam L. Sur la question du lichen moniliforme. Presse Med 1938;51:1000-3.

17. Margolis MH, Cooper GA, Johnson SA. Keratosis lichenoides chronica. Arch Dermatol 1972;105:739-43.

18. Pinol-Aguade J, De Asprer J, Ferrando J. Lichenoid tri-keratosis (Kaposi-Bureau-Barriere-Grupper). Dermatologica 1974;148:179-88.

19. Degos R, Labouche F, Civatte J, Touraine R, Balouget G. Striated lichenoid keratosis. Ann Dermatol Syphiligr (Paris) 1974;101:391-2.

20. Bureau Y, Barriere H, Litoux P, Bureau B. Dermatose papulo-hyperkeratosique en stries: case pour diagnostic. Bull Soc Fr

Dermatol Syphiligr 1970;77:347-9.

21. Wise F, Rein CR. Lichen ruber moniliformis (morbus moniliformis lichenoides). Arch Derm Syphilol 1936;34:830-49.

22. Pinkus H. Lichen ruber moniliformis Kaposi. Arch Derm Syphilol 1946;54:472-4.

23. Pinkus H. Lichen ruber moniliformis (Kaposi). Arch Derm Syphilol 1955;71:543-4.

24. Miller HE. Lichen ruber verrucosus et reticularis (Kaposi); porokeratosis striata (Nekam); morbus monilliformis lichenoides (Wise and Rein). Arch Dermatol Syph 1945;4:129-30.

25. Chapman RS. Lichen verrucosus et reticularis. Dermatologica 1971;142:363-73.

26. Mac Donald DM, Wiliams DI. Lichen verrucosus et reticularis of Kaposi (porokeratosis striata of Nekam). Br J Dermatol 1974;91(Suppl 10):39-40.

27. Menter MA, Morrison JG. Lichen verrucosus et reticularis of Kaposi (porokeratosis striata ofNekam): a manifestation of acquired adult toxoplasmosis. Br J Dermatol 1976;94:645-54.

28. Mehregan AH, Heath LE, Pincus H. Lichen ruber moniliformis and lichen ruber verrucosus et reticularis Kaposi. J Cutan Pathol 1984;11:2-11.

29. Meara RH. Porokeratosis striata (Nekam). Proc R Soc Med 1954;47:173.

30. Scott OLS, Greaves MW. Porokeratosis striata lichenoides of Nekam treated with razoxane. Br J Dermatol 1983;109:73.

31. Chandon JP, Gamby T, Arlaud J, Mongin M, Privat Y. Keratosis lichenoides striata associated with a pseudo-sinhum and neurological picture. Ann Dermatol Venereol 1977;104:45-9.

32. Duperrat B, Carton FX, Denoeux JP, Locquet MC, Miller M. Keratose lichenoide striee. Ann Dermatol Venereol 1977;104:564-6.

33. Barriere H, Litoux P, Bureau B, Welin J, Guyader C. Congenital striata lichenoid keratosis. Ann Dermatol Venereol 1977:104:767-9.

34. Reynaud F, Saurat JH. Keratose lichenoide striee infantile. Dermatologica 1983;167:180-1.

35. Wallach D, About V, Kuffer R, Girard JC, Cottenot F. Keratose lichenoide striee: deux cases avec manifestation orales. Rev

Stomatol Chir Maxillofac 1984;85:307-10.

36. Pringent F, Civatte J. Keratose lichenoide striee congenitale? Read before the Annual Journees Dermatologiques de Paris Meeting. 1986 March 12; Paris. 1986.

37. Elnekave FL, Kuffer R, Erner J, Puissant A, Goudmand C. Keratose lichenoide striee. Ann Dermatol Venereol 1986;113(10):959-61.

38. Fraitag S, Oberlin P, Bourgault I, De Prost Y, Dubertret L, Roujeau JC, et al. Keratose lichenoide striee. Ann Dermatol Venereol 1989;116:900-2.

39. Cohen BH. Keratosis lichenoides chronica. Arch Dermatol 1973;107:296-7.

40. Kint A, Coucke C, de Weert J. Keratosis lichenoides chronica. Dermatologica 1976;153:290-7.

41. Petrozzi JW. Keratosis lichenoides chronica. Possible variant of lichen planus. Arch Dermatol 1976;112:709-11.

42. Armijo M, Carapeto J, Martin Pascual A, Aparicio M, de Unamuno P. Keratosis lichenoides chronica. Dermatologica 1976;153:290-7.

43. Degos R, Civatte J, Jourdain JC, Dassonville M. Keratose lichenoide avec atteinte muqueuse et infiltrat a eosinophiles pharyngo-larynge. Ann Dermatol Venereol 1977;104:54-5.

44. Nabai H, Mehregan AH. Keratosis lichenoides chronica. Report of a case. J Am Acad Dermatol 1980;2:217-20.

45. Schnitzler L, Bouteiller G, Bechetolle A, Verret JL. Keratosis lichenoides cronica with mucous membrane involvement and ocular pseudopemphigus. Follow-up study over 18 years. Retinoid therapy. Ann Dermatol Venereol 1981;108:371-9.

46. Lang PG Jr. Keratosis lichenoides chronica. Successful treatment with psoralen-ultraviolet-A therapy. Arch Dermatol 1981;117:105-8.

47. Panizzon R. Baran R. Keratosis lichenoides chronica. Actuelle Derm 1981;7:7-9.

48. Duschet P, Schwarz T, Gschnait F. Keratosis lichenoides chronica. Hautarzt 1987;38:678-82.

49. Balus L, Fuga GC. Chronic lichenoid keratosis. Ann Dermatol Venereol 1982;109:739-40.

50. Kersey P, Ive FA. Keratosis lichenoides chronica is synonymous with lichen planus. Clin Exp Dermatol 1982;7:49-54.

51. Baran R. Nail changes in keratosis lichenoides chronica are not a variant of lichen planus. Br J Dermatol 1983;109(Suppl 24):23-4.

52. Elbracht C, Wolf AF, Landes E. Keratosis lichenoides chronica. Z Hautkr 1983;58(10):701-8.

53. Baran R, Panizzon R, Goldberg L. The nails in keratosis lichenoides chronica: characteristics and response to treatment. Arch Dermatol 1984;120:1471-4.

54. Watzig V, Schaarschmidt H. Keratosis lichenoides chronica. Z Hautkr 1986;61:783-7.

55. Duschet P, Schwarz T, Gschnait F. Chronic lichenoid keratosis. Hautarzt 1987;38:678-82.

56. Lazarova AZ, Rodriguez MA, Diaz MA. Chronic lichenoid keratosis: apropos of a case. Med Cutan Ibero Lat Am 1988;16:15-7.

57. David M, Filhaber A, Rotem A, Katzenelson-Weissman V, Sandbank M. Keratosis lichenoides chronica with prominent telangiectasia: response to etretinate. J Am Acad Dermatol 1989;21:1112-4.

58. Skorupka M, Kuhn A, Mahrle G. Chronic lichenoid keratosis.

Hautarzt 1992;43:97-9.

59. Arata J, Seno A, Tada J, Wada E, Tamaki H, Tamaki M. Peculiar facial erythemosquamous lesions in two siblings with cyclical summer improvement and winter relapse: a variant of keratosis lichenoides chronica? J Am Acad Dermatol 1993;28(5 Pt 2):870-3.

60. Stefanato CM, Youssef EA, Cerio R, Kobzablack A, Greaves MW. Atypical Nekams disease - keratosis lichenoides chronica associated with porokeratotic histology and amyloidosis. Clin Exp Dermatol 1993;18:274-6.

61. Masouye I, Salomon D, Saurat JH. B-cell lymphoma after cyclosporine for keratosis lichenoides chronica. Arch Dermatol


62. van de Kerkhof PC. Spontaneous resolution of keratosis lichenoides chronica. Dermatology 1993;187(3):200-4.

63. Torrelo A, Mediero IG, Zambrano A. Keratosis lichenoides chronica in child. Pediatr Dermatol 1994;11:46-8.

64. Cho NJ, Sungbin IM, Lee SH. Unilateral keratosis lichenoides chronica. Ann Dermatol 1994;6(1):78-80.

65. Sola-Casas MA, Suriola C, Soldevila Vidal R, Reixach J. Keratosis lichenoides chronica. Actas Dermosifil 1995;86(10):523-6.

66. Patrizi A, Neri I, Passarini B, Varotti C. Keratosis lichenoides chronica: a pediatric case. Dermatology 1995;191:264-7.

67. Smrkolj A, Popovic R, Lunder T. Keratosis lichenoides chronica. Acta Dematoveneorol Alp Panonica Adriat 1995;4(2):67-72.

68. Amichai B, Grunwald MH, Halevy S. Violaceous papules in a linear and reticular pattern. Keratosis lichenoides chronica. Arch Dermatol 1995;131:609-10, 612-3.

69. Ezzine-Sebai N, Fazaa B, Mokhtar I, Pierard-Franchimont C, Pieard GE, Kamoun MR. Keratosis lichenoides chronica: an unusual case. Dermatology 1996;192:416-7.

70. Marschalko M, Papp I, Szalay L, Harsing J, Horvath A. Keratosis lichenoides chronica with chronic hepatitis: a coincidence? Acta Derm Venereol 1996;76:401-2

71. Aloi C, Tomasini F. Keratosis linearis chronica is a variant of inflammatory linear verrucous epidermal nevus! Dermatopathology: Practical & Conceptual 1997;3:305-9.

72. Ruben B, LeBoit PE. Keratosis lichenoides chronica is authentic! Dermatopathology: Practical & Conceptual 1997;3:310-2.

73. Grunwald MH, Amichai B, Finkelstein E, Kachko L. Keratosis lichenoides chronica: a variant of lichen planus. J Dermatol


74. Grunwald MH, Hallel-Halevy D, Amichai B. Keratosis lichenoides chronica: response to topical calcipotriol. J Am Acad Dermatol 1997;37(2 Pt 1):263-4.

75. Ogunbiyi AO, Ogunbiyi JO. Keratosis lichenoides chronica (Nekam disease). Central Afr J Med 1997; 43:306-7.

76. Konstantinov KN, Sondergaard J, Izuno G, Obreshkova E. Keratosis lichenoides chronica. J Am Acad Dermatol 1998;38(2 Pt 2):306-9.

77. Kossard S, Lee S. Lichen planoporitis: keratosis lichenoides chronica revisited. J Cutan Pathol 1998;25:222-7.

78. Bahadoran P, Wechsler J, Delfau-Larue MH, Gabison G, Revuz J, Bagot M. Mycosis fungoides presenting as keratosis lichenoides chronica. Br J Dermatol 1998;138:1067-9.

79. Chikama R. Terui T, Tanita M, Tagami H. Guess what! Keratosis lichenoides chronica. Eur J Dermatol 1999;9:319-20.

80. Thielulent N, Grezard P, Wolf F, Balme B, Perrot H. Guess what? Isolated palmoplantar hyperkeratosis revealing keratosis lichenoides chronica. Eur J Dermatol 1999;9:497-9.

81. Lombardo GA, Annessi G, Baliva G, Monopoli A, Girolomoni G. Keratosis lichenoides chronica. Report of a case associated vith B-cell lymphoma and leg panniculitis. Dermatology 2000;201:261-4.

82. Criado PR, Valente NY, Sittart JA, Juang JM, Vasconsellos C. Keratosis lichenoides chronica: report of a case developing after erythroderma. Australas J Dermatol 2000;41:247-9.

83. Chang SF, Jung EC, Hong SM, Choi JH, Sung KJ, Moon KC, et al. Keratosis lichenoides chronica: marked response to calcipotriol ointment. J Dermatol 2000;27:123-6.

84. Haas N, Czaika V, Sterry W. Keratosis lichenoides chronica following trauma. A case report and update of the last literature

review. Hautarzt 2001;52:629-33.

85. Mevorah B, Landau M, Gat A, De Viragh P, Brenner S. Adolescent-onset ichthyosiform-like erythroderma with lichenoid tissue reaction: a new entity? Br J Dermatol 2001;144:1063-6.

86. AvermaeteA, KreuterJA, Stucker M, Von Kobyleszki G, Altmeyer P, Janset T. Keratosis lichenoides chronica: characteristics and reponse to acitretin. Br J Dermatol 2001;144:422-4.

87. Ghislain PD, De Beir A, Creusy C, Modiano P. Keratosis lichenoides chronica: report of a new case, with success of PUVA therapy. Dermatol Online J 2001;7(1): 4.

88. Remling R, Schnopp C, Schmidt T, Hein R, Ring J, Abeck D. Keratosis lichenoides chronica. Bath PUVA therapy. Hautarzt 2002;53:550-3.

89. Nijsten T, Mentens G, Lambert J. Vascular variant of keratosis lichenoides chronica associated with hypothyroidism and response to tacalcitol and acitretin. Acta Derm Venereol 2002;82:128-30.

90. Redondo P, Solano T. Keratosis lichenoides chronica in childhood. Clin Exp Dermatol 2002;27:283-5.

91. Jayaraman AG, Pomerantz D, Robinson-Bostom L. Keratosis lichenoides chronica mimicking verrucous secondary syphilis. J

Am Acad Dermatol 2003;49:511-3.

92. Menaguale G, Fazio R, Passarelli F, Fazio M. Keratosis lichenoides chronica. Case report and literature review. G Ital Dermatol Venereol 2003;138(3):251-6.

93. Schamsadini S, Hyatbakhsh Abbasi M, Bagheri Kashani MH. Nekam's disease with clinical manifestation simulating Dariers disease: a case report. Iran J Med Sci 2003;28(3):154-6.

94. Miller TD, Chilukuri S, Bayer-Garner IB, Hsu S. Keratosis lichenoides chronic. Int J Dermatol 2004;43:947-50.

95. Vernassiere C, Reichert Penetrat S, Martin S, Barbaud A, Schmutz JL. Keratosis lichenoides chronica and prolonged exposure to infrared radiation. Ann Dermatol Venereol 2004;131(6-7 Pt 1):575-7.

96. Foong H, Ghosn S, Bhawan J. Peculiar erythematous hyperkeratotic lesions in 2 sibling. [cited 2014 Oct 25]. Available from:

97. Bauer U, Ugurel S, Utikal J, Schadendorf D, Goerdt S. 90-year-old male with a hyperkeratotic lichenoid skin eruption. J Dtsch

Dermatol Ges 2005;3:137-9.

98. Demirci E, Boyvat A, Arica IE, Kocyigit P, Ozdemir E, Heper AO. Keratosis lichenoides chronica: market response to PUVA in combination with acitretin. Acta Derm Venereol 2005;85:552-3.

99. Wozniacka A, Schwartz RA, Omulecki A, Lesiak A, Sysa-Jadrzejowska A. Keratosis lichenoides chronica: a diagnostic and therapeutic challenge. Clin Exp Dermatol 2005;31:48-50.

100. Marzano AV, Bellinvia M, Caputo R, Alessi E. Keratosis lichenoides chronica and eruptive keratoacanthoma-like lesions in a patient with multiple myeloma. J Eur Acad Dermatol Venereol 2005;19:129-33.

101. Kunte C, Kerschenlohr K, Rocken M, Schirren C. Keratosis lichenoides chronica: treatment with bath-PUVA. Acta Derm Venereol 2007;87(2):182-3.

102. Tsuboi H, Katsuoka K. Case of keratosis lichenoides chronica. J Dermatol 2007;34:801-3.

103. Mansur AT, Aydingoz IE, Kocaayan N, Gunduz S, Ozseker N, Hazar A, et al. Case of keratosis lichenoides chronica with atypical sarcoidal granulomatous inflamation. J Dermatol


104. Lopez-Navarro N, Alcaraz I, Bosch RJ, Tejera A, Herrera E. Keratosis lichenoides chronica: response to photodynamic therapy. J Dermatol Treat 2008;19:124-5.

105. Ghorpade A. Keratosis lichenoides chronica in an Indian child following erythroderma. Int J Dermatol 2008;47:939-41.

106. Tomb R, Soutou B. Keratosis lichenoides chronica two siblings with marked response to UVB phototherapy. Ann Dermatol Venereol 2008;135(12):835-8.

107. Munoz-Santos C, Yebenes M, Romani J, Luelmo J. Response of keratosis lichenoides chronica to efalizumab therapy. Arch

Dermatol 2009;145(8):867-9.

108. Adisen E, Erdem O, Celepci S, Gurer MA. Easy to diagnose, difficult to treat: keratosis lichenoides chronica. Clin Exp Dermatol 2010;35:47-50.

109. Tchernev G, Nenoff P. Antigen mimicry followed by epitope spreading: a pathogenetic trigger for the clinical morphology of lichen planus and its transition to Graham Lassueur Piccardi Little Syndrome and keratosis lichenoides chronic - medical hypotheses or reality? An Bras Dermatol 2009;84(6):682-8.

110. Grammatikopoulou E, Wilson BB, Cordoro C, Patterson JW Keratosis lichenoides chronica: a case report. Cutis 2010;86:245-8.

111. Garcia-Salces I, Guezmes A, Moro F. Purpuric variant of keratosis lichenoides chronica. Actas Dermosifiliogr


112. Wernner B, Ciola M, Tapasse BC, Boer-Aver A. Keratosis lichenoides chronica: report of two patients. Dermatopathol Pract Conc 2010:16(1):10.

113. Martins LC, Horne M, Moreira DN Jr, Follador I, Almeida VR. Keratosis lichenoides chronica — case report. An Bras Dermatol 2011;86(4 Suppl 4):S148-51.

114. Szczerkowska-Dobosz A, Grubska-Suchanek E, Lan ge M, Komorowska O. Beneficial effect of PUVA therapy in keratosis lichenoides chronica. Clin Dermatol 2011;13(4):245-7.

115. Singh BE, Thomas M, George R. Pediatric onset keratosis lichenoides chronica — a case report. Pediatr Dermatol 2012; 29(4):511-2.

116. Oyama N, Mitsuhashi Y, Yamamoto T. Juvenile-onset keratosis lichenoides chronica treated successfully with topical tacrolimus: a safe and favourable outcome. Eur J Dermatol 2011;21:595-6.

117. Nomura T, Toichi E, Miyachi Y, Kabashima K. A mild case of adult-onset keratosis lichenoides chronica successully treated with narrow-band UVB monotherapy. Case Rep Dermatol 2012;4(3):238-41.

118. Baczewski N, Albano B. A case keratosis lichenoides chronica. J Am Podiatr Med Assoc 2012;102(3):264-6.

119. Ljubenovic M, Ljubenovic D, Mihailovic D, Lazarevic V,

Binic I. Chronic keratosis lichenoides: rare and elusive. G Ital Dermatol Venereol 2013;148(6):708-10.

120. Wee JS, Viros A, Ffolkes L, Misch K, Natkunarajah J. Keratosis lichenoides chronica masquerading as discoid lupus erythematosus. Clin Exp Dermatol 2013;38:327-9.

121. El-Darouti MA. Rare violaceous and reticulate lichenoid eruption with Greasy scales on the face. In: El-Darouti. Challenging cases in dermatology. London: Springer Verlag;

2013. p. 515-6.

122. Zhou P, Geng S, Li B, Wang J, Wang X, Xiao S. Keratosis lichenoides chronica in association with primary cutaneous anaplastic large cell lymphoma. Int J Dermatol 2014;53:e109-12.

123. Zindanci J, Okur H, Zemheri E, Can B, Turkoglu Z, Kavala M, et al. Generalised keratosis lichenoides chronica induced by antituberculosis therapy. A case report. Respir Case Rep


Hronicna liheoidna keratoza -prakse i pregled literature


Uvod. Ideja za ovakav pristup liheoidnoj hronicnoj keratozi (keratosis lichenoides chronica), rodila se kao rezultat prvog susreta sa bolesnikom koji je imao neobicnu klinicku sliku koja je asocirala na lihen ili psorijazu, ali se ipak razlikovala od njih, sto je dovelo do dileme oko dijagnoze i lecenja. Konsultacija sa profesorom Danilom Stevanovicem, kome ovom prilikom zahvaljujemo, i vise puta uraden patohistoloski pregled konacno su potvrdili dijagnozu: keratosis lichenoides chronic (KLC). Prikaz obolelog. Prikazujemo muskarca starog 40 godina kod koga su se promene na kozi trupa i ekstremitetima pojavile pre vise od 10 godina u vidu asimptomatskih simetricno rasporedenih pojedinacnih i slivenih crtastih i mrezastih izbocenja crvenoljubicaste boje sa belicastim ljuspama na povrsini. Pre pojave promena na kozi nije uzimao nikakve lekove niti je bolovao od drugih bolesti. Lecen je pod dijagnozom psoriasis vulgaris, lichen verrucosus. Operisao je fimozu 2014. godine. U porodici nije bilo obolelih srodnika.

Pri pregledu, na donjoj polovini i bocnim stranama trupa i duz ekstremiteta, registruje se simetricna generalizovana erupcija od eritemolividnih do tamnolividnih papula i nodusa sa keratoticnom povrsinom, pojedinacnih ili u linearnom i retikularnom rasporedu (slike 1-3); lezije su infiltrirane, prominentne, cesto verukoznog izgleda i hiperkeratoticne ; na licu prisutni blago izrazeni eritemoskvamozni plakovi, blagog intenziteta ; na dorzalnim stranama stopala vidljive pojedinacne eritematozne papule na eritematoznoj osnovi (Slika 4); palmoplantarno

prikaz bolesnika iz sopstvene

prisutna fokalna hiperkeratoza ; na prepucijumu i skrotumu pojedinacne hiperkeratoticne papule sa otezanim prevlacenjem preko glansa (slike 5-7). Relevantne laboratorijske analize, ukljucujuci i seroloske reakcije na HIV-1 (eng. human immunodeficiency virus type 1 ), viruse hepatitisa i sifilis, bile su u granicama fizioloskih vrednosti. Patohistoloska analiza isecka koze radena je u vise navrata, od 2004. godine kada je nalaz ukazivao na psorijaziformni dermatitis, potom lihenoidni dermatitis, 2009. godine na hipertroficni lihen planus, a 2010. godine pityriasis lichenoides. Patohistoloska analiza isecka koze sa ekstremiteta radena 2009. godine: epidermis pokazuje iregularnu akantozu, varijabilnu atrofiju, umerenu ortoparakeratozu; teleangiektazije i superficijalni i dublje lokalizovan inflamatorni celijski infiltrat u dermisu (Slika 8); na vecem mikroskopskom povecanju prisutni su vakuolarna degeneracija bazalnog sloja i upadljiva hijalina tela (civatte body) (Slika 9). Patohistoloska analiza isecka koze prepucijuma radena je 2014. godine: iregularna akantoza, hiperkeratoza i fokalna parakeratoza u epidermisu; teleangiektazije uz inflamatorni infiltrat u dermisu (Slika 10); na vecem uvelicanju vidi se iregularna akantoza, fokalna folikularna hiperkeratoza i parakeratoza, vakuolna degeneracija celija bazalnog sloja epidermisa uz teleangiektazije i inflamatorni infiltrat sastavljen od limfocita i plazma celija (slike 11 i 12). Dijagnoza KLC je postavljena na osnovu tipicne klinicke slike u prvom redu, na osnovu vise puta ponovljene biopsije i patohistoloskog nalaza, toka bolesti i slabog odgovora na bilo koji vid terapije:

sistemska primena kortikosteroida, UVB zracenje, topijski kortikosteroidi i salicilna kiselina nisu pruzili zadovoljavajuce rezultate, primena acitretina u pocetnoj dozi od 0,3 mg/kgTT sa porasom do 1 mg/ kgTT dala je neznatne terapijske efekte (slike 13 i 14). Pregled literature. Keratosis lichenoides chronica (KLC) veoma je retka hronicna i progresivna dermatoza nerazjasnjene etiologije koju najcesce karakterisu asimptomatske papulozne ili nodularne lezije, paralelne linearne ili retikularne, simeticno rasporedene na trupu, ekstremitetima i na licu koje podsecaju na seboricni dermatitis ili rozaceu; moguce su i lezije na dlanovima, tabanima, noktima i mukoznim membranama - oralnim, faringealnim, laringealnim, okularnim i genitalnim. Prvi opis bolesnika sa ovakvom klinickom slikom dao je Kaposi 1886. godine pod dijagnozom lichen ruber moniliformis; 1895. godine, kod dva bolesnika sa slicnim promenama postavio je dijagnozu lichen ruber acuminatus (verrucosus et reticularis). Dalja konfuzija oko naziva bolesti nastaje kada je Nekam 1938. godine, opisujuci Kaposijevog bolesnika iz 1895. godine, postavio dijagnozu porokeratosis striata lichenoides. Za bolesnika sa tipicnom klinickom slikom Margolis 1972. godine predlaze naziv keratosis lichenoides chronica, koji je definitivno prihvacen, mada je u meduvremenu bilo i novih termina. Tako se javljaju publikacije u kojima se navode termini lichenoid tri-keratosis, keratosis lichenoides striee, dermatosepapulohyperkeratosic en striée. Objavljeni radovi o slucajevima sa dijagnozom keratosis lichenoides chronica ili sinonimima u periodu 1886-2014. godine. U periodu od 1886. do 2014. godine, dakle poslednjih 128 godina, objavljeno je prema nasem saznanju 120 radova pod naslovom keratosis lichenoides chronica (KLC) ili sinonimima (Tabela 1). Etiologija bolesti nije razjasnjena. Nacin nasledivanja, ili uticaj drugih genetskih alteracija, ili povezanost sa nekim lekovima ili infekcijom nisu definisani. Faktori „okrivljeni" da izazivaju KLC kao varijantu lihenoidne erupcije na lekove su antimalarici, antituberkulotici, tetanusni antiserum; KLC se moze javiti i posle mehanickog ostecenje koze, npr. traume i transplantacije koze ili moze predstavljati kutanu manifestaciju toksoplazmoze.

Patofiziologija takode nije dovoljno razjasnjena. Opisana je pojava KLC posle lekovima izazvane

eritrodermije, prolongirane ekspozicije izvoru toplote (infracrvena radijacija). Udruzenost KLC sa lezijama slicnim/nalik keratomu opisana je kod bolesnika sa multiplim mijelomom i kod bolesnika sa atipicnom sarkoidalnom granulomatoznom inflamacijom; opisana je udruzenost KLC sa hipotiroidizmom, sa tuberkulozom, bolestima bubrega, dijabetesom, limfomom, toksoplazmozom, mycosis fungoides, multiplom sklerozom, hepatitisom, lezijama slicnim verukoznom sekundarnom sifilisu, sa primarnim kutanim anaplasticnim krupnocelijskim limfomom, sa atopijskim dermatitisom, alergijskim rinitisom, neuroloskim bolestima. Medutim, nije moguce ustanoviti signifikantnu povezanost izmedu KLC i oboljenja unutrasnjih organa. Jos vece nejasnoce se javljaju kada se postavi pitanje da li KLC predstavlja klasicnu zapaljensku bolest, poseban entitet, ili predstavlja manifestaciju drugih poznatih dermatoza, ka sto su lichen planus, lupus erythematosus ili lichen chronicus. Ove dileme traju godinama - da li KCL predstavlja nasledni oblik epidermolysis bullosa, ili diseminovanu varijantu inflamiranog linearnog verukoznog epidermalnog nevusa, ili tranziciju lihen planusa u KLC, usled porasta broja fokusa. Utvrdena je izuzetna slicnost KLC sa lupusom ertematozusom. U osnovi, oboljenje se moze pogresno dijagnostikovati u okviru dermatoza kao sto su lichen planus, lupus erythematosus, psoriasis vulgaris, pityriasis rubra pilaris, ukoliko se na znake ovih dermatoza nadovezuju znaci cesanja i trljanja. Znaci arteficijalnosti lezija su: upecatljiva linearnost lezija, sklonost za cesanje i trljanje mesta koja su lako dostupna). Tako se neki slucajevi KLC mogu smatrati posledicom upornog trljanja i cesanja, drugi mogu biti od vec postojece bolesti (lichen planus, diskoidni eritemski lupus pityriasis rubra pilaris, psorijaza), sto objasnjava varijacije patohistoloskog nalaza. Medutim, radi se o autenticnom patoloskom procesu, posebnom entitetu, koji karakterisu lezije u linearnom rasporedu, odsustvo Vikamovih strija, dugotrajna evolucija, slab odgovor na kortikosteroide, koji se razlikuje od manifestacija karakteristicnih za: lichen planus, lupus erythematosus, pityriasis lichenoides, pityriasis rubra pilaris, psoriasis vulgaris porokeratosis, mycosis fungoides i porokeratosis variegata. KLC se generalno smatra posebnim dermatoloskim oboljenjem na osnovu tipicne klinicke i patohistoloske slike.

Diferencijalno-dijagnosticki dolaze u obzir: lichen planus i lichen planopilaris, lupus erythematosus,pityriasis lichenoides, pityriasis rubra pilaris, psoriasis vulgaris, mycosis fungoides, lihenoidna reakcija na lekove, lichen hypertrophicus, parapsoriasis variegata, keratosis follicularis, epidermolysis bullosa pruriginosa, Rajterova bolest, morbus Kyrle. Opsezan opis patohistoloskih krakteristika dao je Ber (Böer): prisustvo vakuolarne degeneracije keratinocita na dermoepidermalnoj granici; brojni nekroticni keratinociti ponekad u jatima, u povrsnom epidermisu i infundibularnom epidermisu, narocito u nizim delovima; atrofija i ponekad erozija epitela u zaristima gde ima mnogo nekroticnih keratinocita; neravnomerna akantoza u zaristima; moze biti prisutna hipergranuloza klinastog oblika u zonama akantoze; keratinski cepovi u infunibulumu folikula dlake i oko akrosiringija; neravnomerna parakeratoza; ostaci neutrofila u zonama parakeratoze; hipogranuloza ispod zone parakeratoze; plazma celije u infiltratu u zonama pored erozije. Ispod povrsine epidermisa nalazi se limfoidni infiltrat koji je cesto centriran oko infundibula i akrosiringa; reakcija stranog tela kao posledica rupture dilatiranih infundibula i izbacivanja njihovog sadrzaja u dermis. U osnovi, radi se o lihednoidnoj dermatozi sa iregularnom akantozom, fokalnom parakeratozom, varijabilnom atrofijom, vakuolarnom degeneracijom bazalnog sloja i nekrozom keratinocita, hronicnim inflamatornim infiltratom u papilarnom dermisu sastavljenim od limfocita, histiocita, plazma celija i eozinofila i koloidnim telima (Civatte body). Diferencijlno- dijagnosticki treba razlikovati KLC od oboljenja lichen hypertrophicus. Kod KLC nalazi se blaga papilomatoza fokalna parakeratoza, varijabilna atrofija i akantoza epidermisa, vakuolarna degeneracija bazalnih celija, teleangiektazije u superficijalnom dermu; kod oboljenja lichen hyperkeratoticus (lichen verrucosus) prisutna je u epidermisu kompaktna ortokeratoza papilomatoza, prominentna iregularna akantoza i prominentna vakuolarna degeneracija bazalnih celija. Patohistoloski nalaz kod naseg bolesnika bio je karakteristican za KLC. Upravo zbog velikog broja dermatoza koje diferencijalno-dijagnosticki dolaze u obzir i zbog mogucnosti istovremenonog obolevanja od dve ili vise dermatoza, desavalo se da je prikazani bolesnik u stvari oboleo od druge dermatoze a ne od KLC. Slucajevi obolevanja pacijenata,

objavljeni pod kontroverznom dijagnozom keratosis lichenoides chronica (KCL)/ili sinonimima, u periodu 1886-2005. godine. Analizom dostupne literature Ber je napravio kriticki osvrt na objavljene podatke u periodu 1886-2005. godine i nasao da bi za izvestan broj bolesnika obuhvacenih ovom analizom trebalo da bude postavljena dijagnoza keratosis lichenoides chronica, bilo da ima karakteristike drugog slicnog oboljenja ili da nema dovoljno podataka klinickih ili patohistoloskih za postavjanje sigurne dijagnoze (Tabela 2). Radeci ovu analizu Ber je zastupao stav da se KLC moze dijagnostikovati samo ako su prisutna najmanje dva klinicka i jedan histoloski kriterijum: 1. hronicne rasprostranjene erupcije koje zahvataju lice, slicne seboroicnom dermatitisu; 2. papularna erupcija sa karakteristicnim linearnim i retikularnim rasporedom na trupu i ekstremitetima, pri cemu se centar papula nalazi u infundibulumu ili u akrosiringu; 3. histoloski: lihenoidni dermatitis sa mnogobrojnim nekroticnim keratinocitima i parakeratozom. Od ostalih znakova, moze se javiti mukozno zahvatanje, ukljucujuci konjunktivalnu hiperemiju, ali ono nije karakteristicno. Prema nalazima Bera odstupanja u laboratorijskim nalazima su nespecificna i nemaju dijagnosticki znacaj. Tok je protrahiran, kompletna rezolucija promena nije nikada opisana. Slucajevi obolevanja pacijenata objavljeni pod kontroverznom dijagnozom KCL/ili sinonimima u periodu 1886-2014. godine. Iako je prema nama dostupnoj literaturi registrovano oko 120 radova sa KLC i svakako sa vecim brojem obolelih, s obzirom na analizu Bera, ne moze se sa sigurnoscu odrediti koliko je u periodu 1886-2014. godine bilo stvarno obolelih od KLC. Da bismo prikazali podatke o bolesnicima i karakteristike KLC, obradili smo 98 radova objavljenih u nama dostupnoj literaturi u periodu 1886-2014. godine, u kojima je prikazano ukupno 115 bolesnika (Tabela 3). Bolest se pokazala rezistentnom na mnoge terapijske modalitete, bilo lokalne bilo sistemski primenjene). U Tabeli 4 prikazani su rezultati lecenja raznim medikamentima i fizikalnim metodama u periodu 1886-2014. godine.

Nekam je 1938. godine opisao bolesnika koga je Kaposi prikazao 1895. godine i cak predlozio drugi naziv za oboljenje. Mi prikazujemo bolesnika koga pratimo na nasoj klinici od 2004. godine. Povod je bio zelja da prikazemo i promene na genitalijama,

koje su se pojavile 2014. godine a koje su morale biti hirurskim putem resene.

Zakljucak. Dijagnoza je kod pacijenta koga smo prikazali postavljena na osnovu tipicne klinicke slike, na osnovu vise puta ponovljene biopsije i

patohistoloskog nalaza, toka bolesti i slabog odgovora na bilo koji vid terapije. Tok bolesti je inace hronican, progresivan sa rezistencijom na razne vrste terapije, tako da je i pored varijacija u klinickoj slici zaista lakse postaviti dijagnozu bolesti nego je leciti.

Kljucne reci

Keratoza; Lihenoidne erupcije; Znaci i simptomi; Tok bolesti; Dijagnoza; Diferencijalna dijagnoza; Ishod terapije; Pregled literature