Analysis of 1031 cases of dermatophytosis and the pathogenic dermatophytes

Abstract

Abstract:

Objective To understand the clinical characteristics, susceptible factors, distribution of fungal pathogens of dermatophytosis in Shanghai. Methods All 1031 cases of dermatophytosis presented with typical clinical features and positive culture results were collected during January 2013 to December 2017 in our outpatient department for analysis. SPSS 23.0 was used in statistic analysis. Results Of 1031 cases of dermatophytosis, 535 were males and 496 were females, 1033 strains of dermatophytosis were isolated. The peak incidence of dermatophytosis was 21-30 years old and 31-40 years old. 71 cases (6.89%) had one or more other fungi isolated from patients with dermatophytosis, and 2 cases (0.19%) had two kinds of dermatophytes, in which the most isolated other fungi were Rhodotorula. The most common dermatophytosis was onychomycosis (n=344,33.37%), followed by tinea cruris (n=200,19.40%), tinea corporis (n=162,15.71%), tinea pedis (n=138,13.39%), tinea manus (n=108,10.48%), tinea facialis (n=45,4.36%) and tinea capitis (n=34, 3.30%), in which there were significant gender differences in tinea cruris and onychomycosis. In the distribution of strains, the top three were Trichophyton mentagrophytes (n=542, 52.47%), Trichophyton rubrum (n =397, 38.43%) and Microsporum canis (n=66, 6.39%), in which there were significant gender differences between Trichophyton rubrum and Microsporum canis. Conclusion The main type of dermatophytosis in our hospital was onychomycosis, and the main pathogen was Trichophyton mentagrophytes. The distribution and epidemic trend of dermatophytosis and dermatophytosis are similar to those in most areas of China in recent years, but it has its own characteristics.

Key words: Dermatophytosis, Dermatophyte, Tinea unguium, Trichophyton mentagrophytes, Rhodotorula spp

CLC Number:

R756

JIANG Wei-wei, HU Dong-ying, HOU Qing, DU Ming-wei, LI Hang, DENG Yu-chen, LI Shuai, CAO Yun, ZHENG Fang-wei, LING Li-yan, YU Xiao-tian, FANG Wen-jie, ZHAO Jin, PAN Wei-hua, LIAO Wan-qing. Analysis of 1031 cases of dermatophytosis and the pathogenic dermatophytes[J]. Chinese Journal of Mycology, 2019, 14(2): 99-103.

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