Forouzan Parnia, Cohen Philip R
Dermatology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, USA.
Dermatology, San Diego Family Dermatology, National City, USA.
Cureus. 2020 Sep 30;12(9):e10733. doi: 10.7759/cureus.10733.
Erythrasma is a bacterial infection of the skin typically caused by Corynebacterium minutissimum. This pathogen infects the stratum corneum in warm and wet areas of the skin. Most commonly, the axillary, inguinal, and interdigital regions are affected. A 60-year-old man presented for the examination of a pedunculated lesion on his right proximal thigh. Upon examination of the lesion, adjacent areas of central hypopigmentation and peripheral hyperpigmented scaling were also noted bilaterally in the groin region. Differential diagnoses of candidiasis, dermatophyte infection, erythrasma, pityriasis versicolor, and terra firma-forme dermatosis were considered. Wood lamp examination revealed bright coral-pink fluorescence. Correlation of the clinical examination and the Wood lamp finding established the diagnosis of erythrasma. Twice daily topical 2% mupirocin ointment therapy led to the resolution of our patient's erythrasma. In this case report, the diagnosis, differential diagnoses, and treatment of erythrasma are reviewed.
红癣是一种皮肤细菌感染，通常由微小棒状杆菌引起。这种病原体感染皮肤温暖潮湿部位的角质层。最常见的是腋窝、腹股沟和指间区域受到影响。一名60岁男性因右大腿近端出现带蒂病变前来检查。检查病变时，还在双侧腹股沟区域发现了中央色素减退和周边色素沉着鳞屑的相邻区域。考虑了念珠菌病、皮肤癣菌感染、红癣、花斑癣和地衣状皮肤病的鉴别诊断。伍德灯检查显示明亮的珊瑚粉红色荧光。临床检查结果与伍德灯检查结果相互印证，确诊为红癣。每日两次外用2%莫匹罗星软膏治疗使该患者的红癣得到治愈。在本病例报告中，对红癣的诊断、鉴别诊断和治疗进行了综述。
