Scientific paper/ Artículo científico VETERINARY SCIENCE pISSN:1390-3799; eISSN:1390-8596 http://doi.org/10.17163/lgr.n32.2020.08 C ONCORDANCE BETWEEN MICOLOGICAL CULTURE AND CYTOPATHOLOGY IN THE DIAGNOSIS OF DERMATOPHYTOSIS IN GUINEA PIGS CONCORDANCIA ENTRE EL CULTIVO MICOLÓGICO Y LA CITOPATOLOGÍA EN EL DIAGNÓSTICO DE DERMATOFITOSIS EN CUYES Renzo Venturo B. and Siever Morales-Cauti Veterinary Medicine and Zootechnics Career, Universidad Científica del Sur. Carr. Panamericana Sur 19, Villa EL Salvador 15067, Lima, Perú. *Corresponding author: sieverm@hotmail.com Article received on September 18th, 2019. Accepted, after review, on June 11th, 2020. Published on September 1st, 2020. Abstract Dermatophytosis is a disease that affects the stratum corneum of the skin, hair and nails in guinea pigs, causing bad aspect of the carcass, affecting its commercialization and generating economic losses. For the study 189 samples of guinea pigs with dermatological lesions were collected in intensive breeding farms; the guinea pigs were analyzed by cytopathology and mycological culture in the Laboratory of Microbiology and Microscopy of Universidad Científica del Sur. The frecuency of dermatophytosis was 18.5 ± 5.5% by mycological culture and 43 ± 7.1 % by cytopathology; according to the age stratum, the dermatophytosis frecuency was 0% / 0% in breeding, 25.6% / 62% in rearing, and 4.8% / 6% in reproductive guinea pigs by mycological culture and cytopathology, respectively. About the location of the lessions, a frequency of 0% / 0% was found in cages by both techniques, while for animals raised in pools a frequency of 26.5% / 61% was found by culture and cytopathology, respectively. The grade of congruity between these two tests was determined by the value of Kappa (κ) equal to 0.46. The result indicates that there is a moderate degree of association. Keywords: Guinea pigs, dermatophytoses, mycological culture, cytopathology. Resumen La dermatofitosis es una enfermedad que afecta al estrato córneo de la piel, pelo y uñas de los cuyes, causando un mal aspecto en la carcasa, afectando su comercialización, y generando pérdidas económicas. Se colectaron 189 muestras de cuyes con lesiones dermatológicas en granjas de crianza intensiva; las cuales fueron analizadas mediante cultivo micológico y citopatología en el Laboratorio de Microbiología y Microscopía de la Universidad Científica del Sur. Se 104 LA GRANJA: Revista de Ciencias de la Vida 32(2) 2020:104-111. ©2020, Universidad Politécnica Salesiana, Ecuador.