背景:毛癣菌,一种嗜人性皮肤癣菌,可以通过宠物引起人畜共患感染的人和动物的皮肤癣菌病,主要在欧洲。由于其炎性症状,苯海喉炎的皮肤癣菌病经常被误诊。我们报告了一例本氏T.benhamiaevar的体癣。一个日本女人的黄体,从宠物捷克德格斯那里承包的。
方法:40岁患者出现类似痤疮的颈部丘疹。最初使用局部抗生素和类固醇治疗会加剧皮疹。直接氢氧化钾检查未检测到真菌元素。皮肤活检证实角质层和毛囊中的真菌成分,并确诊了体癣.开始口服特比萘芬125mg,无需外用药物。她的四肢出现红斑丘疹,确定为毛癣菌反应。两个月后,她的皮肤明显改善。真菌培养鉴定出T.benhamiaevar。黄体菌落带黄色色调。交配测试将该菌株分类为具有MAT1-1基因型的美欧种族(-)。这被诊断为来自T.benhamiaevar的体癣。黄体,可能是从宠物捷克德古斯传播的。
结论:在日本,随着饲养外来宠物的趋势,宠物传播的皮肤真菌感染的发生率可能会增加。皮肤科医生必须从嗜人性皮肤癣菌中识别皮肤癣菌的临床特征,以防止误诊并了解不断发展的命名法和发病机理。
BACKGROUND: Trichophyton benhamiae, an anthropophilic dermatophyte, can cause dermatophytosis in humans and animals with rising zoonotic infections through pets, primarily in Europe. Dermatophytosis from T. benhamiae is often misdiagnosed due to its inflammatory symptoms. We report a
case of tinea corporis from T. benhamiae var. luteum in a Japanese woman, contracted from pet Czech degus.
METHODS: The 40-year-old patient developed neck papules resembling acne. Initial treatment with topical antibiotics and steroids exacerbated the rash. Fungal elements were not detected by direct potassium hydroxide examination. Skin biopsy confirmed fungal elements in the stratum corneum and hair follicles, and tinea corporis was diagnosed. Oral terbinafine 125 mg was initiated without topical agents. Erythematous papules appeared on her limbs, determined as a trichophytid reaction. After two months, her skin improved significantly. Fungal culture identified T. benhamiae var. luteum colonies with a yellowish hue. Mating tests classified the strain as Americano-European race (-) with MAT1-1 genotype. This was diagnosed as tinea corporis from T. benhamiae var. luteum, likely transmitted from pet Czech degus.
CONCLUSIONS: The incidence rate of pet-transmitted cutaneous fungal infections may increase in Japan with the trend to keep exotic pets. Dermatologists must recognize dermatophytosis clinical features from anthropophilic dermatophytes to prevent misdiagnosis and understand evolving nomenclature and pathogenesis.