Estudio microscópico de dermatopatías en equinos de la sabana de Bogotá, Colombia

Horses hold third place in number of cases of skin disease after cats and dogs; however, there is little information about the demographic aspects of dermatological diseases in this species in Colombia. The purpose of this work was to carry out a preliminary study in order to determine the dermatological diseases that affect horses in the Bogota Savanna, through biopsy, skin scraping and trichogram, in order to approach the diagnosis and thus to establish therapeutic and prophylactic measures that benefit the animal’s health and productivity in commercial farms. Thirty-nine skin biopsies, thirty-nine cutaneous scraping and thirtyseven samples of hairy peel from horses with some kind of skin disease were received, all of which were processed by the Histopathology Laboratory from La Salle University. The inflammatory injuries were sorted taking into account the histological patterns of inflammatory skin disease and tumors, according to the classification by the World Health Organization (WHO). Allergic dermatitis was the most common pathology (46%) and neoplasia was observed in 13% of the cases; fungal spores in ectothrix position were found in 10% of the cutaneous scrapes. Mites of the type Psoroptes spp were identified in one of the trichograms. This is the first report of microscopic diagnosis of skin diseases of horses in the country with the goal of contributing with the demographic knowledge of skin diseases in the Bogota Savanna. Os cavalos ocupam o terceiro lugar em apresentação de doença dermatológica depois dos cachorros e dos gatos; contudo, é escassa a informação que se dispõe sobre os aspectos demográficos das doenças dermatológicas nesta espécie na Colômbia. O objetivo do presente trabalho foi fazer um estudo preliminar para conhecer as doenças dermatológicas que afetam os equinos na savana de Bogotá, mediante biopsia, raspagem de pele e tricograma, com a finalidade de aproximar-se ao diagnóstico e assim estabelecer medidas terapêuticas e profilácticas que beneficiem a saúde animal e a produtividade em explorações comerciais. Foram recebidas 39 biopsias de pele, 39 raspagens cutâneas e 37 amostras de crostas pilosas de equinos com algum tipo de dermatopatia, as quais foram processadas no Laboratório de Histopatologia da Universidade de La Salle. As lesões inflamatórias se classificaram levando em conta os padrões histológicos de doenças inflamatórias de pele e os tumores, segundo a classificação da Organização Mundial de a saúde (OMS). As derma