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Primary extraskeletal hepatic osteosarcoma in a cat.
Ravinder S Dhaliwal1, Todd O Johnson, Barbara E Kitchell
1All Care Animal Referral Center, 18440 Amistad St, Fountain Valley, CA 92708, USA.
Journal of the American Veterinary Medical Association
|February 5, 2003
Summary
A rare hepatic osteosarcoma in a cat was successfully treated with surgery and chemotherapy. This case highlights a potential treatment protocol for feline liver tumors.
Area of Science:
- Veterinary Oncology
- Comparative Pathology
Background:
- Osteosarcoma, typically a bone tumor, can rarely occur in extraskeletal sites.
- Hepatic osteosarcoma is an exceptionally rare malignant neoplasm in domestic animals.
Observation:
- A 13-year-old domestic shorthair cat presented with a palpable abdominal mass.
- Radiography identified a radiopaque mass in the cranioventral abdomen.
Findings:
- Histological examination confirmed the abdominal mass as a hepatic osteosarcoma.
- Surgical resection (partial hepatectomy) and adjuvant carboplatin chemotherapy resulted in complete tumor remission.
Implications:
- This case demonstrates the feasibility of surgical and chemotherapeutic intervention for feline hepatic osteosarcoma.
- Successful treatment suggests potential for improved outcomes in rare feline neoplasms.