Abstract
Reported sporotrichosis, dematiaceous fungus infection and cryptococcosis cases in Japan were statistically and epidemiologically analysed.
1) Cutaneous sporotrichosis: As of December 31, 1983, 1, 396 cases of cutaneous sporotrichosis had been reported. Cumulative prevalence was calculated, 1.18 cases in 100, 000 population. 51.4% of the cases were of the fixed cutaneous type, 47.7% of the lymphocutaneous type and 0.5% of the disseminated type. It was of interest that massive fungal elements were detected in 11 cases, almost all of which were treated with steroid ointments.
2) Cutaneous dematiaceous fungus infections: Until December 31, 1983, 344 cases of cutaneous dematiaceous fungus infections had been reported. Cumulative prevalence was of 0.29 cases in 100, 000 population. 302 cases were diagnosed as chromomycosis (Fonsecaea pedrosoi, 264 cases; Phialophora verrucosa, 4 cases, Exophiala dermatitidis, 16 cases; Exophiala jeanselmei, 3 cases; others, 15 cases), 39 as subcutaneous phaeohyphomycosis or phaeomycotic cyst (Fonsecaea pedrosoi, 3 cases; Phialophora verrucosa, 3 cases; Exophiala jeanselmei, 25 cases; Dactylaria gallopava, one case, others, 7 cases) and 3 as tinea nigra palmaris (Exophiala werneckii, 3 cases).
3) Cutaneous cryptococcosis: As of June 31, 1984, 54 cases of cutaneous cryptococcosis were reported. Cumulative prevalence was obtained in 0.05 cases per 100, 000 population. 17 cases were classified as primary cutaneous, localized type, 7 as primary cutaneous, systemic type and 30 as secondary cutaneous, systemic type.
