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1 December 2014 AIR SAC ADENOCARCINOMA OF THE STERNUM IN A QUAKER PARROT (MYIOPSITTA MONACHUS)
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Abstract

Respiratory neoplasia is rarely reported in avian species. A 17-yr-old Quaker parrot (Myiopsitta monachus) was admitted with a 2-wk history of anorexia, depression, and respiratory distress. Clinical examination revealed a large, firm mass in the left pectoral muscle. Radiology showed a mass silhouetting the heart and the liver. Supportive treatment was provided, but the bird died during the seventh weekly visit to drain thoracic cavity fluid. Necropsy showed a white, 3 × 3 × 2–cm, hard, gritty sternal mass. Histology showed a nonencapsulated, moderately differentiated air sac carcinoma of the sternum. Immunohistochemically the neoplasm was cytokeratin positive and vimentin and calretinin negative. This is the first report of an air sac neoplasia in a Quaker parrot and one of few respiratory tumors in psittacines.

Copyright 2014 by American Association of Zoo Veterinarians
Panayiotis Loukopoulos, Julius Boniface Okuni, Teresa Micco, Jorge P. Garcia, Francisco A. Uzal, and Santiago S. Diab "AIR SAC ADENOCARCINOMA OF THE STERNUM IN A QUAKER PARROT (MYIOPSITTA MONACHUS)," Journal of Zoo and Wildlife Medicine 45(4), 961-965, (1 December 2014). https://doi.org/10.1638/2014-0080.1
Received: 3 May 2014; Published: 1 December 2014
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