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...

Background: There is not yet a pathognomonic laboratory test for the diagnosis of Behcet’s Disease (BD). The diagnosis is therefore based on clinical manifestations. Mucocutaneous lesions are the most important and the most frequent clinical manifestations of BD. Objective: To study the mucocutaneous lesions systematically. In a great number of patients. Some of these clinical pictures are poor...

Leishmania species can cause a wide spectrum of cutaneous disease in HIV-positive patients: asymptomatic, localized cutaneous, mucosal, muco-cutaneous, diffuse cutaneous or post-kala-azar leishmaniasis. In such cases, which are usually severely immunocompromised, the leishmanial parasites reach the skin of the human host by dissemination after either a new infection (resulting from the bite of ...

herein, a 28-year-old man with hoarseness, skin and oral lesions is presented. at the time of admission, the patient had an erythematous plaque on his chin near his lower lip and an erythematous-violaceous plaque on his palate near the open-ing of the pharynx and 20 kg weight lost in last one year. the biopsy of his skin lesions by hematoxylin and eosin staining revealed an infiltration of the ...

background: oral lichen planus (olp) is a relatively common chronic inflammatory muco-cutaneous disease classified among the potentially malignant lesions of oral mucosa. in this study we evaluated tissue expression of p 53 ، ki-67 in olp com­pared to normal oral mucosa. methods: specimens (formalin-fixed and paraffin- embedded) of 44 lesions of olp and 30 controls referred to immuno­histochem­...