Review of 50 Cases of Black Dot Ringworm was made Including Our 7 Cases seen in Kumamoto District

Abstract

Seven cases of patients with black dot ringworm due to Trichophyton glabrum seen in Kumamoto district were reported and the review of Japanese literature for recent 7 years gave following results. The causative fungi from 43 cases reported in Japanese literature from 1974 to August 1980 and our 7 cases were Trichophyton violaceum, Trichophyton glabrum, Trichophyton rubrum, and Trichophyton tonsurans. Analysis of 50 black dot ringworm revealed a distinct female preponderance with a sex ratio of 36:14. The mean age of females was 27.9 years higher than that of males, for there was no cases of black dot ringworm in males more than the age of 13 years. Parietal region of the scalp was the commonest site of involvement and most of the patients were on long term therapy with corticoid ointment. Oral administration of griseofulvin-UF was recommended to the patients with black dot ringworm.