Analysis of Dermatophyte Flora at a Private Clinic in Sapporo During the Period 1982 to 1991
1994 Volume 35 Issue 1 Pages 33-43
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1994 Volume 35 Issue 1 Pages 33-43
Statistical analysis was performed on 4, 695 patients suffering from dermatophytosis, which represents 7.1% of my outpatient population during the period 1982 to 1991. Sex ratio (male/fe-male) was 1.5:1, and the largest population was individuals in their 4th decade. Among 5, 580 cases of dermatophytoses, tinea pedis was the most frequent (64.0%), followed by teinea unguium (14.2%), tinea cruris (10.4%), tinea corporis (8.2%), tinea manuum (2.8%), tinea capitis (0.3%), kerion celsi (2 cases) and tinea barbae (1 case). The incidence of tinea pedis increased, whereas that of tinea cruris and tinea corporis decreased during the 10 year survey. Thirty point seven % of dermatophytosis cases had two or more clinical types; for example, 81.4% of tinea unguium and 69.2% of tinea manuum cases had concomitant tinea pedis, respectively. 3, 669 dermatophyte fungi were isolated during the survey. They were Trichophyton rubrum (TR) (67.8%), T. mentagrophytes (TM) (26.5%), Microsporum canis (MC) (3.9%), Epidermophyton floccosum (1.6%), M. gypseum (0.1%) and T. violaceum (0.1%).
Sixty three point five % of the dermatophytes isolated from tinea pedis was TR. Among the 144 MC isolated, 120 were from tinea corporis, 15 from tinea capitis, 8 from tinea pedis and 1 was from tinea manuum.
TR was 2.6 times more frequent than TM. This ratio is higher than that of previous reports from Hokkaido prefecture, Japan.
