Localized annular lichen planus on foot mimicking tinea pedis

Abstract

Lichen Planus (LP) is an inflammatory mucocutaneous disease characterized by typically itchy, pink-purple, polygonal, flat, papules and plaques. The genital region, the oral mucosa, and the flexor surfaces of the extremities are the most common locations of lichen planus. LP usually appears as diffuse lesions. In the literature, single liken planus lesion cases were re ported on the lower lip, esophagus, and breast. Localized foot annular lichen planus is a very rare and extraordinary manifestation of LP. Herein, we present two cases of a single plaque LP on the foot that had been diagnosed as tinea pedis and nummular dermatitis in external family medicine clinics. We want to underline the significance of this uncommon entity in the differential diagnosis of plantar dermatoses in primary care.

Keywords

• lichen planus
• tinea pedis
• histopathology
• family physician
• primary care