Analysis of 1031cases of dermatophytosis and the pathogenic dermatophytes

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

doi:10.3969/j.issn.1673-3827.2019.02.008

Abstract：Objective To understand the clinical characteristics,susceptible factors,distribution of fungal pathogens of dermatophytosis in Shanghai.Methods All 1031cases of dermatophytosis presented with typical clinical features and positive culture results were collected during January 2013to December 2017in our outpatient department for analysis.SPSS 23. 0was used in statistic analysis.Results Of 1031cases of dermatophytosis,535were males and 496were females,1033 strains of dermatophytosis were isolated.The peak incidence of dermatophytosis was 21-30years old and 31-40years old. 71cases(6.89％)had one or more other fungi isolated from patients with dermatophytosis,and 2cases(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 rubrumand 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.