误诊为体癣的环状扁平苔藓一例
A Case of Annular Lichen Planus Misdiagnosed as Tinea Corporis

患者女，74岁，因“全身散在红斑、丘疹伴痒1年”就诊，曾被误诊为体癣。皮肤科专科查体示：颜面部、腹部、背部可见针尖至1.5 cm × 1.0 cm大小的紫红色斑块，离心性分布，边缘呈堤状隆起而围成环形，中央萎缩样凹陷，表面有少许鳞屑附着，边界清楚，无融合现象。结合组织病理检查符合环状扁平苔藓的诊断，予维A酸乳膏、卤米松/三氯生乳膏交替外用后皮疹消退。在报告一例就诊于云南省中医医院皮肤科专科医院的环状扁平苔藓的同时，并对近年来关于此病的文献报道进行回顾复习。
A 74-year-old female patient presented with “scattered erythematous macules and papules with pruritus for 1 year” and had previously been misdiagnosed with tinea corporis. Dermatological examination revealed purple-red plaques ranging in size from pinhead to 1.5 cm × 1.0 cm on the face, abdomen, and back, with centrifugal distribution. The edges were elevated in a dike-like manner, forming annular shapes, with central atrophic-like depression. The surface had a few scales attached, and the borders were clear without any fusion. Histopathological examination was consistent with the diagnosis of annular lichen planus. After application of tretinoin cream and alternate topical use of halometasone/trichloromethiazide cream, the rash subsided. While reporting a case of annular lichen planus treated at the Dermatological Hospital of Yunnan Province of Traditional Chinese Medicine, we also reviewed the literature on this disease in recent years.