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Bladder teratoma in a maned wolf (Chrysocyon brachyurus)
Lana Fox1, Christopher S Hanley2, Luis R Padilla2
1Texas A&M Veterinary Medical Teaching Hospital, Department of Zoological Medicine, 408 Raymond Stotzer Parkway, College Station, TX 77845, USA.
Open Veterinary Journal
|January 31, 2020
Summary
This study reports the first case of a urinary bladder teratoma in a maned wolf. This rare germ cell tumor, a teratoma, infiltrated the bladder, leading to the animal's euthanasia.
Area of Science:
- Veterinary Pathology
- Comparative Oncology
- Zoological Medicine
Background:
- Teratomas are germ cell tumors characterized by diverse tissue types, often foreign to their origin.
- Extragonadal teratomas are rare, with limited documentation in veterinary literature.
Observation:
- A 5.5-year-old female maned wolf presented with stranguria and suspected cystitis.
- Diagnostic imaging and surgical exploration revealed neoplastic infiltration of the urinary bladder.
- The lesion was inoperable, necessitating euthanasia of the animal.
Findings:
- Necropsy identified two masses infiltrating the urinary bladder, significantly reducing its lumen.
- Histopathology confirmed a teratoma with multiple tissue types and vascular invasion.
- This represents the first reported case of a teratoma originating in the urinary bladder of a non-human species.
Implications:
- This case expands the understanding of teratomas in non-human species.
- Highlights the importance of considering rare neoplasms in complex urogenital presentations in exotic animals.
- Contributes to the comparative pathology of germ cell tumors.
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