Mattox T F, Rutgers J, Yoshimori R N, Bhatia N N
Department of Obstetrics and Gynecology, Harbor/UCLA Medical Center, UCLA School of Medicine.
Obstet Gynecol. 1993 May;81(5 ( Pt 2)):862-4.
Erythrasma is an uncommon vulvar infection, best diagnosed by its fluorescence under the Wood lamp. This report shows that despite a negative Wood lamp examination, the diagnosis can be made histologically.
A 42-year-old woman was referred to our clinic with a persistent candidal infection. Evaluation included a Wood lamp examination, wet mount, and potassium hydroxide test of the affected skin, all of which were negative. A biopsy of the area demonstrated rods and filamentous organisms in the keratotic layer consistent with a Corynebacterium minutissimum infection. The patient was diagnosed as having erythrasma, and she responded to oral erythromycin.
Persistent vulvar diseases may be caused by erythrasma despite a negative Wood lamp examination. The diagnosis can be made by biopsy of the lesion.
红癣是一种罕见的外阴感染，通过伍德灯下的荧光检查最易诊断。本报告表明，尽管伍德灯检查结果为阴性，但仍可通过组织学检查做出诊断。
一名42岁女性因持续性念珠菌感染转诊至我院。评估包括伍德灯检查、湿片检查以及对受影响皮肤进行氢氧化钾试验，所有结果均为阴性。该区域的活检显示角质层中有杆菌和丝状微生物，符合微小棒状杆菌感染。患者被诊断为患有红癣，口服红霉素后有反应。
尽管伍德灯检查结果为阴性，但持续性外阴疾病可能由红癣引起。可通过病变活检做出诊断。
