Peer-reviewed veterinary case report
Recurring lump under the skin in adult red-crowned Amazon parrot
By Lauer, Savannah et al.·Published in Journal of avian medicine and surgery·2019·School of Veterinary Medicine, United States·View original on PubMed →
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Original publication title: Recurrent Subcutaneous Teratoma in an Adult Red-crowned Amazon Parrot ().
- Species:
- bird
Plain-English summary
A 42-year-old red-crowned Amazon parrot was brought in for a lump near its breastbone. Tests showed the lump was a type of tumor called a teratoma, which had both skin and nerve tissue. The vet surgically removed the mass and gave the parrot anti-inflammatory medication to help with recovery. Unfortunately, the tumor came back twice over the next few years, requiring additional surgeries each time. The vet found that the tumor had not been completely removed during the first two surgeries, leading to its recurrence.
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Abstract
An approximately 42-year-old, wild-caught, red-crowned Amazon parrot () 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.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/31124613/