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  • Title: [An epidemiological survey of dermatomycoses in Japan, 2002].
    Author: Nishimoto K.
    Journal: Nihon Ishinkin Gakkai Zasshi; 2006; 47(2):103-11. PubMed ID: 16699491.
    Abstract:
    An epidemiological survey of dermatomycoses and the causative fungus flora of dermatophytoses in Japan for 2002 was made on a total number of 72,660 outpatients who visited 14 dermatological clinics throughout Japan. The results were as follows: 1) Dermatophytosis was the most prevalent cutaneous fungal infection (7,994 cases) seen in these clinics, followed by candidiasis (755 cases) and then Malassezia infections (220 cases). 2) Among dermatophytoses, tinea pedis was the most frequent (4,813 cases: male 2,439, female 2,374), then in decreasing order, tinea unguium (2,123 cases: male 1,093, female 1,030), tinea corporis (497 cases: male 281, female 216), tinea cruris (299 cases: male 249, female 50), tinea manuum (248 cases: male 144, female 104) and tinea capitis including kerion (14 cases, male 6, female 8). 3) Tinea pedis and tinea unguium are seen to increase in summer season, among the aged population and among males in each clinic. When compared to the previous surveys (1992 and 1997) by clinical form, t. unguium patients increased from 1.9% of total outpatients in 1992, to 2.0% in 1997, then to 2.9% in 2002. 4) As the causative dermatophyte species, Trichophyton rubrum was the most frequently isolated among all dermatophyte infections except tinea capitis. 5) T. rubrum was isolated from 63.3%(1,431/2,262) of tinea pedis lesions, followed by Trichophyton mentagrophytes (36.6%, 829/2,262), and also 88.8% (325/366) of t. corporis, 95.4% (185/194) of t. cruris and 85.6% (462/540) of t. unguium. 6) Cutaneous candidiasis was seen in 755 cases (1.0%) of 72,660 outpatients. Intertrigo (347 cases) was the most frequent clinical form, followed by erosio interdigitalis (103 cases) and diaper candidiasis (102 cases). It has a tendency to affect the aged being complicated with topical predisposing factors. 7) Cutaneous Malassezia infections and other superficial fungal infections are seen in 220 cases, without any characteristic features by gender or clinical form.
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