Juvenile tinea capitis caused by Trichophyton violaceum. Hepatic reactions during ketoconazole treatment.

A 10-year-old boy with T. violaceum tinea capitis was given systemic ketoconazole therapy. After 4 weeks' treatment, liver enzymes had increased considerably. Ketoconazole treatment was stopped and 3 weeks later the values had returned to normal. Three weeks thereafter the patient was completely cured and no relapses have occurred.