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Liposarcomas in dogs: 56 cases (1989-2000)
Jennifer L Baez1, Mattie J Hendrick, Frances S Shofer
1Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104-6010, USA.
Journal of the American Veterinary Medical Association
|April 9, 2004
Summary
In dogs, liposarcomas are locally invasive tumors that rarely spread. Wide surgical excision offers the best survival outcomes compared to other surgical methods for canine liposarcoma.
Area of Science:
- Veterinary Oncology
- Canine Neoplasia
- Surgical Oncology
Background:
- Liposarcomas are malignant tumors arising from fat cells.
- Understanding their behavior in dogs is crucial for effective treatment.
- Previous studies on canine liposarcoma prognosis are limited.
Purpose of the Study:
- To investigate the biological behavior of canine liposarcomas.
- To identify clinical signs and prognostic factors.
- To evaluate the impact of treatment on survival time.
Main Methods:
- Retrospective study of 56 dogs with histologically confirmed liposarcoma.
- Data collected included signalment, tumor characteristics, treatment details, and outcomes.
- Surgical procedures analyzed were incisional biopsy, marginal excision, and wide excision.
Main Results:
- Wide excision resulted in the longest median survival time (1,188 days) compared to marginal excision (649 days) and incisional biopsy (183 days).
- Liposarcomas were locally invasive with a low metastatic rate.
- Tumor size, margin status, location, and histologic subtype were not significantly associated with survival.
Conclusions:
- Canine liposarcomas are primarily locally invasive neoplasms.
- Wide surgical excision is the preferred treatment modality when feasible.
- Early and complete surgical removal is key to improving prognosis in dogs with liposarcoma.