Abstract

ESCORCIA-QUINTANA, Mariemma Guadalupe; CALDERON-APODACA, Norma Leticia  and  GARCIA-ESPINOSA, Gary. Thyroid adenocarcinoma in a versicolor pheasant (Phaisanus versicolor): Case report. Vet. Méx [online]. 2008, vol.39, n.4, pp.435-441. ISSN 0301-5092.

Different kinds of adenocarcinoma have been described in a variety of species; nevertheless, thyroid adenocarcinomas are relatively rare in birds. In this study, pathological findings of a thyroid adenocarcinoma in a pheasant versicolor (Phasianus versicolor) are described in order to be considered in the differential diagnosis of chronic diseases in wild birds of the Galliform order. The anatomicopathological findings belonged to a six year old male pheasant, which showed respiratory difficulty without secretion 24 h before its death. At necropsy, a non-encapsulated soft tissue multinodular mass was found at tracheal bifurcation, extending to the cranial area of lungs and left side costal bones. According to the histological features and its location, the diagnosis is consistent with thyroid follicular adenocarcinoma. The present study will be useful for the differential diagnosis of chronic diseases in the pheasant versicolor species.

Keywords : Follicular Adenocarcinoma; Thyroid Gland; Pheasant Versicolor.

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