Abstract
We report a case of tinea capitis and tinea unguium in a 15 year-old girl caused by Microsporum canis which was supposed to have been contracted from a pet cat.
The proximal half of her left thumb nail was discolored and numerous short hyphae were seen with potassium hydroxide preparation. M. canis was isolated both from hair and nail specimens. She was treated by oral grilseofulvin (500mg per day) for one month and the scalp and nail lesions were healed after 1 and 4 months, respectively. This is the first reported case of onychomycosis caused by M. canis in Japan.
