Related Experiment Videos
Renal osteosarcoma in a dog
J S Munday1, J Egins, B A Selcer
1Department of Pathobiology, Institute of Veterinary and Animal Biological Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand.
The Journal of Small Animal Practice
|December 17, 2004
Summary
A dog with renal osteosarcoma experienced local tumor recurrence despite initial surgical success. Hematuria indicated both initial tumor development and its later recurrence, leading to euthanasia.
Area of Science:
- Veterinary Oncology
- Canine Pathology
Background:
- Osteosarcoma is a common bone cancer in dogs, often affecting long bones but can occur in other sites.
- Primary renal osteosarcoma is rare in dogs, presenting diagnostic and therapeutic challenges.
Observation:
- A seven-and-a-half-year-old dog presented with anorexia, lethargy, and hematuria.
- A large abdominal mass (1.8 kg) was surgically removed and diagnosed as primary renal osteosarcoma.
Findings:
- The dog experienced local tumor recurrence five months post-surgery, confirmed radiographically.
- The recurrence manifested as hematuria, a sign also present during initial tumor development.
- Despite expectations of distant metastasis for osteosarcomas, this case was characterized by local recurrence.
Implications:
- This case highlights the potential for local recurrence of renal osteosarcoma in dogs.
- Hematuria can be a critical indicator for both the initial diagnosis and subsequent recurrence of renal tumors.
- Management strategies for rare canine osteosarcomas should consider the possibility of local recurrence even after apparent complete resection.