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Primary splenic mesenchymal chondrosarcoma in a dog.
Jonathan M Miller1, Richard Walshaw, Andrea C Bourque
1Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown, Prince Edward Island C1A 4P3. millerj@vt.edu
Summary
A rare splenic mesenchymal chondrosarcoma was diagnosed in a dog. Despite surgical removal, suspected tumor recurrence led to euthanasia, highlighting the guarded prognosis for this canine cancer.
Area of Science:
- Veterinary Medicine
- Canine Oncology
- Surgical Pathology
Background:
- Exploratory celiotomy is a surgical procedure to investigate abdominal conditions.
- Splenic masses can represent a variety of neoplastic or non-neoplastic conditions in dogs.
- Mesenchymal chondrosarcoma is a rare, aggressive tumor type.
Observation:
- A large splenic mass was identified during exploratory celiotomy in a 12-year-old Labrador retriever.
- Histologic examination confirmed the mass as a mesenchymal chondrosarcoma.
- The dog was euthanatized seven weeks postoperatively due to suspected tumor recurrence.
Findings:
- Extraskeletal mesenchymal chondrosarcomas are uncommon in canine patients.
- This case highlights the rapid progression and poor prognosis associated with splenic mesenchymal chondrosarcoma.
- Tumor recurrence following surgical intervention was observed.
Implications:
- Early detection and aggressive management may be crucial for improving outcomes in dogs with splenic tumors.
- Further research into the biology and treatment of extraskeletal mesenchymal chondrosarcoma in dogs is warranted.
- Veterinary oncologists should consider mesenchymal chondrosarcoma in the differential diagnosis for splenic masses in dogs.