Survey of 200 cases of sporotrichosis.

A survey of 200 cases of sporotrichosis seen at the Dermatology Clinic of Chiba University Hospital from May 1965 to August 1983 is reported. The proportion of cases with sporotrichosis to the total number of outpatients was 0.15%. A higher percentage of cases fell into the less than 12-year-old or more than 40-year-old age groups. The male to female ratio was 1:2. Half of the cases occurred in farmers. Seventy-eight cases had a history of injury. One hundred and eight cases showed the cutaneous lymphangitic type and 92 cases showed the localized cutaneous type. The face and upper extremities were the most frequently affected sites. The sporotrichin skin test was positive in 96.3% of the cases. The causative organism was demonstrated in tissue sections in 94.5% of the cases.