Granular cell tumor in an endangered Puerto Rican Amazon parrot (Amazon vittata)
Avian Pathology
By: Charlotte Quist, K. S. Latimer, S. L. Goldade, A. Rivera, and F. Joshua Dein
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Abstract
A 3 cm diameter mass from the metacarpus of a Puerto Rican Amazon parrot was diagnosed as a granular cell tumour based on light microscopy. The cytoplasmic granules were periodic-acid Schiff positive and diastase resistant. Ultrastructural characteristics of the cells included convoluted nuclei and the presence of numerous cytoplasmic tertiary lysosomes. This is only the second granular cell tumour reported in a bird. We speculate that most granular cell tumours are derived from cells that are engaged in some type of cellular degradative process, creating a similar morphologic appearance, but lacking a uniform histogenesis.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Granular cell tumor in an endangered Puerto Rican Amazon parrot (Amazon vittata) |
| Series title | Avian Pathology |
| DOI | 10.1080/03079459994597 |
| Volume | 28 |
| Issue | 4 |
| Publication Date | June 17, 2010 |
| Year Published | 1999 |
| Language | English |
| Publisher | Taylor & Francis |
| Contributing office(s) | National Wildlife Health Center |
| Description | 4 p. |
| First page | 345 |
| Last page | 348 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |