Background: Oral Lichen Planus (OLP) is a chronic inflammatory disease affecting the oral mucosa in 0.5-2% of the world’s population. It is more common in women compared to men and the mean age at the onset of the lesion is the fourth decade. Objectives: The purpose of this study was to evaluate the presence of Helicobacter pylori (H. pylori) in Oral Lichen Planus and Oral Lichenoid Reaction. M...

Leishmaniasis is a infectious disease with broad spectrum of clinical features from typical noduloulcerative lesion to atypical lesions. In this article, we presented 4 cases with atypical presentation of cutaneous leishmaniasis lesions (including eczematous, sporotrichoid and lichenoid) in an endemic area in Iran, Kerman. The first case was a 28- year- old man presented with a pruritic purplis...

BACKGROUND Benign lichenoid keratosis (BLK, LPLK) is often misdiagnosed clinically as superficial basal-cell carcinoma (BCC), especially when occurring on the trunk. However, BCCs undergoing regression may be associated with a lichenoid interface dermatitis that may be misinterpreted as BLK in histopathologic sections. METHODS In order to assess the frequency of remnants of BCC in lesions int...

BACKGROUND Nail apparatus melanoma is known to be associated with a poor prognosis, mainly because of a delay in diagnosis that is made at an invasive stage. This delay is particularly true in cases involving amelanotic melanoma. To our knowledge, only 1 case of in situ amelanotic melanoma of the nail unit has previously been described. We report 3 cases of in situ amelanotic melanoma with clin...

BACKGROUND The occurrence of lichenoid keratosis (LK) on the face is not well characterized, and the histopathologic distinction between LK and lupus erythematosus (LE) occurring on the face is often indeterminate. The authors aimed to describe differences between LE and LK occurring on the face by hematoxylin and eosin alone. METHODS Cases of LK and LE were obtained using computer-driven que...