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Updated: Apr 30, 2026
An Orthotopic Model of Murine Bladder Cancer
Published on: February 6, 2011
Primary urinary bladder haemangiosarcoma in a captive saddleback tamarin (Saguinus fuscicollis)
Omar Gonzales-Viera1, Tatiana Quevedo, Alfonso Chavera
1Laboratório de Histología, Embriología y Patología Veterinaria, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima, Perú
A rare urinary bladder cancer, haemangiosarcoma, was diagnosed in a saddleback tamarin. This finding is significant as it has not been previously reported in non-human primates.
Area of Science:
- Veterinary Pathology
- Comparative Oncology
- Primate Medicine
Background:
- A captive adult male saddleback tamarin (Saguinus fuscicollis) presented with lethargy and unresponsiveness.
- The animal unfortunately died before veterinary intervention could be provided.
Observation:
- Necroscopic, histopathological, and immunohistochemical examinations were conducted post-mortem.
- Key findings revealed neoplastic spindle cells within the urinary bladder.
Findings:
- Immunohistochemical analysis showed positivity for antifactor VIII antibody in the neoplastic cells.
- A diagnosis of primary urinary bladder haemangiosarcoma was established.
Implications:
- This case represents the first reported instance of urinary bladder haemangiosarcoma in non-human primates.
- Highlights the importance of considering rare tumor types in non-human primate veterinary oncology.
- Contributes to the comparative pathology database for New World monkeys.
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