Aspectos epidemiológicos, clínicos y micológicos de la tiña del cuerpo durante 63 años en un centro de referencia de la Ciudad de México.

OBJECTIVES: To establish the epidemiological, clinical and mycological characteristics of tinea corporis at the Mycology Service of the Centro Dermatológico Pascua, Mexico City, from January 1956 to December 2019. MATERIALS AND METHODS: A retrospective, cross-sectional and descriptive study of patients with clinical mycosis diagnosis. RESULTS: 56,729 patients were included; 30,235 were confirmed by direct microscopy KOH examination and/or mycological culture; 3590 were tinea of the body. Tinea corporis accounted for the third place among dermatophytoses (11.8%); more frequent in adults (64.3%). The most common evolution was from 1 to 3 months (30.8%). It mainly involved the trunk (49.1%), face and neck (31.1%). The direct microscopy KOH examination was positive in 91% of cases, compared to the 75.4% positive cultures. There were 52.3% Trichophyton rubrum, 22.3% Microsporum canis, 16.8% Trichophyton tonsurans, 4.2% Trichophyton mentagrophytes, 1.7% Trichophyton concentricum, 1.1% Nannizzia gypsea (previously known as Microsporum gypseum), 1% Epidermophyton floccosum, 0.2% Trichophyton violaceum and 0.1% Microsporum audouinii. CONCLUSIONS: Tinea corporis takes third place among dermatophytoses, with a prevalence of 6.3%. Trichophytic ringworm had a clear preponderance over microsporic one. Direct microscopic KOH examination is more sensitive for confirming diagnosis than culture. Due to these results were obtained in a referral center, they reflect the behavior of these dermatophytoses in Mexico. [ABSTRACT FROM AUTHOR]