1. Vincent SD, Fotos PG, Baker KA, Williams TP. Oral lichen planus: The clinical, histological and therapeutic features of 100 cases. Oral Surg Oral Med Oral Pathol 1990;70:165-71. 2. Eisen D. The evaluation of cutaneous, genital, scalp, nail, esophageal, and ocular involvement in patients with oral lichen planus. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 1999;91:431-6. 3. Van der Meij E...

Lichen planopilaris (LPP) is also known as lichen follicularis or follicular lichen planus. LPP is a cutaneous disorder selectively involving hair follicles with a lymphocytic inflammatory process that eventually destroys the follicles 1. LPP is more common in women (60% to 90% of the cases) than men 2. LPP is a disease of unknown etiology whose pathogenesis is poorly understood despite a suspe...

Lichen planus pigmentosus is a pigmentary disorder of unknown etiology, with diffuse hyperpigmentation of sun-exposed areas, more commonly seen in some ethnic and racial groups. We report an unusual case of lichen planus pigmentosus in a 40-year-old man with Fizpatrick type III skin that was present in a blaschkoid distribution on the trunk, a distribution that has been rarely reported. This un...

T ERMATOSES of diverse etiology have been -I-~ reported to give rise to skin and mucous membrane lesions whose morphology, symptomatology, course, and microscopic picture cannot be distinguished from lichen planus. Drugs,1-6 vaccines,7 contact with chemicals,8-'3 and exposure to ultraviolet light and Grenz rays14 are prominent among the causative agents which have been observed to produce liche...

FDG: fluorodeoxyglucose LPP: lichen planopilaris PET-CT: positron emission tomographye computed tomography PD-1: programmed cell death receptor 1 P embrolizumab, a programmed cell death receptor 1 (PD-1) inhibitor, has been used effectively for treatment of metastatic melanoma. Reported cutaneous adverse events ascribed to PD-1 inhibitors include lichenoid reactions such as lichen planus of the...

Lichen planus (LP) is a papulosquamous dermatosis that involves the skin, scalp, nails and mucous membranes. Although its pathogenesis is still unknown, there is evidence that an imbalance of immunologic cellular reactivity plays an important role. Histopathologic examination reveals characteristic interface dermatitis. Dermoscopy is a non-invasive tool, useful in the assessment of inflammatory...

BACKGROUND AND AIMS Lichen planus is a relatively common chronic mucocutaneaous disease with an unknown cause, and is considered a manifestation of cell-mediated immune response. Hepatitis C virus (HCV) and its subgroups have been associated with lichen planus in different geographic locations. The present study was undertaken to evaluate the prevalence of HCV antibody in patients with lichen p...

DOI: 10.4103/2229-5178.209617 and Analysis of 38 Cases. Dermatol Surg 2015;41:1411‐8. 3. Tong LX, Weinstock M, Drews R, Sheikine Y, Kim CC. Widely metastatic squamous cell carcinoma originating from malignant transformation of hypertrophic lichen planus in a 24‐year‐old woman: Case report and review of the literature. Pediatr Dermatol 2015;32:e98‐101. 4. Wörheide J, Bonsmann G, Kolde G, Hamm H....

Several cutaneous inflammatory diseases can affect the nails, leading to alterations that be severe and determine functional psychosocial consequences. Lichen planus, a benign disorder of not well understood etiology, is one them. Nail manifestations in lichen planus may isolated or appear more generalized involvement skin. Currently nail very difficult treat, there aren’t therapies fully accep...