BACKGROUND & AIMS There is a close relationship between hepatitis C virus (HCV) infection and lichen planus, a chronic inflammatory mucocutaneous disease. We performed a genome-wide association study (GWAS) to identify genetic variants associated with HCV-related lichen planus. METHODS We conducted a GWAS of 261 patients with HCV infection treated at a tertiary medical center in Japan from Oc...

2 Copeman PWM, Tan RSH, Timlin D, et al. Familial lichen planus. Another disease or distinct people? Br J Dermatol 1978; 98 : 573–577. 3 Sodaify M, Vollum DI. Familial lichen planus. Br J Dermatol 1978; 98 : 579–581. 4 Grunnet N, Schmidt H. Occurrence of lichen planus in a family. Genetic susceptibility or coincidence? Clin Exp Dermatol 1983; 8 : 397–400. 5 Kofoed ML, Wantiz GL. Familial lichen...

Lichen planus is a chronic mucocutaneous T-cell-mediated disease, the cause of which remains unknown. The first case of lichen planus that transformed into squamous cell carcinoma was reported in 1903. The presented study concerns the case of a 62-year-old woman in whom twice malignant transformation of hypertrophic lichen planus in the dorsal part of the left foot developed. Several studies ha...

BACKGROUND The association between lichen sclerosus and vulvar squamous cell carcinoma (VSCC) has long been recognized, but large epidemiologic studies are lacking. METHODS Data of women diagnosed with vulvar pathology in the Netherlands were retrieved from the Dutch Pathology Registry. All vulvar pathology reports of this historical cohort were reviewed to construct a research database, incl...

Porokeratotic Variant of Lichen Planus: Lichen planus (LP) is a well-known dermatologic disorder with various different clinical presentations. We present a case of patient who was found to have porokeratotic lichen planus, a previously unreported variant of LP.

Lichen planus is a chronic, inflammatory, autoimmune disease that affects the skin, oral mucosa, genital mucosa, scalp, and nails. Lichen planus lesions are described using the six P's (planar [flat-topped], purple, polygonal, pruritic, papules, plaques). Onset is usually acute, affecting the flexor surfaces of the wrists, forearms, and legs. The lesions are often covered by lacy, reticular, wh...

Actinic lichen planus is a clinical variant of lichen planus, involving mainly sun-exposed areas and manifested as annular lesions with a pigmented center surrounded by a hypopigmented zone. A rare presentation of actinic lichen planus mimics melasma but have distinctive histopathologic picture in favour of actinic lichen planus. Herein, we report a 14-year-old boy who presented with a me...

1. Gutte R, Khopkar U. Predominant palmoplantar lichen planus: A diagnostic challenge. Indian J Dermatol 2014;59:343‐7. 2. Pavitran K, Karunakaram M, Palit A, Raghunatha S. On disorders of keratinisation. In: Valia RG, Valia AR, editors. IADVL Textbook of Dermatology. 3rd ed. Mumbai, India: Bhalani Publishers; 2008. p. 995‐1069. 3. Gutte RM. Unilateral acrosyringeal lichen planus of palm. India...

Lichen planus is a benign disorder characterized by an itchy, noninfectious skin rash. Though lichen planus is a common papulosquamous disorder affecting about 1-2% of the population, neoplastic transformation of cutaneous lichen planus lesions occurs very rarely and should be borne in mind while treating nonhealing longstanding lesions of lichen planus. Studies suggest an estimated 0.3-3% risk...

Question: Can lichen communities be used to assess shortand long-term factors affecting seral quaking aspen (Populus tremuloides) communities at the landscape scale? Location: Bear River Range, within the Rocky Mountains, in northern Utah and southern Idaho, USA. Method: Forty-seven randomly selected mid-elevation aspen stands were sampled for lichens and stand conditions. Plots were characteri...