Mixoma cutâneo em galinha doméstica (Gallus gallus domesticus) – Relato de caso

Abstract

Cutaneous myxoma is a benign neoplasm that can affect various types of tissues, with its prevalence varying among different species and causing several clinical problems, some of which are significant for the animal welfare. We report a case involving an adult chicken that was admitted to the Veterinary Universitary Hospital of Universidade Federal da Paraíba, presenting bilateral swelling in the femorotibiotarsal region. The chicken underwent surgical intervention for tumor resection, and the excised tissues were sent for histopathological analysis. The histopathological examination revealed spindle cells surrounded in a myxoid matrix, with neoplastic cells showing poorly delimited eosinophilic cytoplasm, round to oval nuclei, and an absence of mitotic figures. The myxoid matrix exhibited positive staining with Alcian Blue. The neoplastic tissue was identified as cutaneous myxoma based on histopathological findings. This report contributes to the literature with another case of neoplasia in a chicken, highlighting the importance of proper diagnosis and treatment.