Primary Pericardial Well-Differentiated Papillary Mesothelioma in a Spotted Hyena (Crocuta crocuta)
Louise van der Weyden, Dewald Keet, Nicolize O’Dell, Ryou Tanaka · 2025
Read Primary Pericardial Well-Differentiated Papillary Mesothelioma in a Spotted Hyena (Crocuta crocuta) by Louise van der Weyden, Dewald Keet, Nicolize O’Dell, Ryou Tanaka (2025) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12737775.txt.
Description
Louise van der Weyden and co-authors report a rare heart-sac tumor in a captive spotted hyena, published in 2025. Reports of tumors in hyenas are few. The adult female developed loss of appetite, lethargy, and a swollen belly over three days, and was sedated for examination, but died before internal checks could be done.
Post-mortem study found bloody fluid filling the sac around the heart, plus congestion in lungs and liver. Microscopy of the sac's surface showed fibrous growths lined by a layer of large tumor cells of mesothelial origin, forming finger-like projections and invading nearby tissue, with signs of older bleeding. The diagnosis was a well-differentiated papillary mesothelioma of the pericardium. Death was attributed to shock from the fluid pressure strangling the heart.
Catalog record
| CREATOR | Louise van der Weyden, Dewald Keet, Nicolize O’Dell, Ryou Tanaka |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 23 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |