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25 March 2019 Recurrent Subcutaneous Teratoma in an Adult Red-crowned Amazon Parrot (Amazona viridigenalis)
Savannah Lauer, Marie E. Pinkerton, Christoph Mans, Grayson A. Doss
Author Affiliations +
Abstract

An approximately 42-year-old, wild-caught, red-crowned Amazon parrot (Amazona viridigenalis) was evaluated for a subcutaneous mass to the right of the keel. Cytologic examination of a fine needle aspirate of the mass were suggestive of granulomatous inflammation. The mass was surgically excised, and the parrot was treated with oral nonsteroidal anti-inflammatory drugs. Histologically, the mass was diagnosed as a teratoma with stratified squamous epithelial and neuroectodermal components. Tumor cells extended to surgical margins. Two years later, the neoplasm recurred, with regrowth of only the neuroectodermal component. The neoplasm was again removed surgically, but it recurred again 14 months later, necessitating a third surgery. Histopathologic examination confirmed recurrence of the original neoplasm in both instances, with incomplete margins on both excisions.

© 2019 by the Association of Avian Veterinarians
Savannah Lauer, Marie E. Pinkerton, Christoph Mans, and Grayson A. Doss "Recurrent Subcutaneous Teratoma in an Adult Red-crowned Amazon Parrot (Amazona viridigenalis)," Journal of Avian Medicine and Surgery 33(1), 59-64, (25 March 2019). https://doi.org/10.1647/2017-331
Published: 25 March 2019
KEYWORDS
Amazona viridigenalis
Avian
red-crowned Amazon parrot
subcutaneous mass
teratoma
tumor
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