3例不同临床表现的石膏样小孢子菌感染

Three cases of dermatophytoses with various clinical manifestations caused by Microsporum gypseum

报道3例由石膏样小孢子菌感染引起的、临床表现不同的皮肤癣病.例1表现为阴囊红色斑片,上覆白色斑点状痂屑,刮去痂屑后见湿润的基底面,患者父亲有同样病变,父子穿用同一件内裤,其父与家猫有密切接触.例2患儿左面部擦伤后局部出现钱币大小红斑,中央为白色痂皮,边缘有渗出伴痒.例3患儿右面部出现钱币大小、边界清楚的红斑,表面有散在的丘疹及少许鳞屑伴痒,偶有家猫接触.3例患者均平素体健.取皮损表面组织直接镜检均发现大量菌丝;真菌培养及鉴定为石膏样小孢子菌.诊断为石膏样小孢子菌所致皮肤感染.3例患者经抗真菌治疗1～2周后痊愈,取得很好疗效.

Three cases of dermatophytoses caused by Microsporum gypseum with various clinical manifestations were reported.Case 1 developed exudative erythema on the scrotum overlying white paint dot-like incrustation for 1 month.His father had the similar problem and they had shared a same pants.The father had frequent contact with domestic cat.Case 2 presented with a coin-sized erythema with crusts in the middle and exudation in the border on the left side of his face for 2 weeks after local abrasion.Case 3 had a coin-sized,well-circumscribed erythema overlying scattered papules and scales for 3 weeks.She occasionally played with the cat at home.A large amount of hyphea were noticed from the lesion by direct microscope examination.Fungal colonies developed on Sabouraud dextrose agar （SDA） after inoculating for 2 weekswere identified as Microsporum gypseum.The lesions resolved completely after topical use of different antimycotic agents or oral itraconazole capsules for 1-2 weeks.