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20 May 2016 Squamous Cell Carcinoma of the Oropharynx and Esophagus with Pulmonary Metastasis in a Backyard Laying Hen
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Abstract

A backyard laying hen exhibiting muscular atrophy, dyspnea, and absence of egg production was analyzed for diagnostic insights. Gross findings revealed the presence of a large ulcerated mass with irregular edges involving the caudal part of the oropharynx and the cranial part of the esophagus, occluding the lumen of the esophagus and compressing the trachea. Small nodular lesions were detected also in the lungs. Histologically, both esophageal and pulmonary masses were characterized by nests of pleomorphic epithelial cells with squamous differentiation. The diagnosis was of squamous cell carcinoma of the esophagus with the uncommon feature of pulmonary metastasis.

© 2016 American Association of Avian Pathologists
Laura Nordio, Marta Vascellari, Giacomo Berto, and Luca Bano "Squamous Cell Carcinoma of the Oropharynx and Esophagus with Pulmonary Metastasis in a Backyard Laying Hen," Avian Diseases 60(3), 694-697, (20 May 2016). https://doi.org/10.1637/11374-011516-Case.1
Received: 19 January 2016; Accepted: 17 May 2016; Published: 20 May 2016
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