抄録
We report a 69 year-old male patient with Microsporum gypseum infection on his scrotum. The lesion was a form of annular erythema, not the diffuse erythema with scaling usually seen in the cases of tinea scroti due to anthropophilic dermatophytes. The fungus was seen as clusters of short hyphae in the scale from the lesion and was identified as M. gypseum. The patient had been confined to bed and the route of contagion was not detected. The lesion healed rapidly with topical application of isoconazole cream.