Carcinoma uropigial de células escamosas en <i>Nymphicus hollandicus</i>

A 15-year-old male cockatoo, Nymphicus hollandicus, was referred for medical consultation with a mass in the region of the uropygeal gland, which was subjected to incisional biopsy and sent for histopathologic examination. A malignant epithelial neoplasm of epithelial origin of the stratified flat epithelium of the glandular ducts was observed. In addition, multifocal moderate coagulation necrosis foci with abundant heterophilic inflammatory infiltrate and bacterial colonies of coccoid morphology were present. The above findings are morphologically compatible with squamous cell carcinoma of the uropygeal gland, for which few reports have been published in this species and anatomical region. The patient’s quality of life deteriorated after excision of the gland, and after 6 months the owners decided to euthanize him. This is the first documented case of Nymphicus hollandicus in Colombia. It highlights the importance of early diagnosis to allow better treatment and improve both the prognosis and the quality of life of the patient.