Spleen sarcoma in dogs is a rare cancerous tumor originating in the spleen, typically aggressive and requiring immediate veterinary attention. These tumors arise from connective tissue cells and can metastasize to other organs.
Spleen sarcoma forms when abnormal cells in the spleen multiply uncontrollably, creating a mass. The exact cause remains unknown, though genetic mutations and immune system dysfunction may contribute. Unlike benign tumors, sarcomas invade surrounding tissues and spread through the bloodstream.
| Tumor Type | Malignant/Benign | Common Affected Breeds |
|---|---|---|
| Splenic Hemangiosarcoma | Malignant | German Shepherds, Golden Retrievers |
| Splenic Lymphoma | Malignant | Boxers, Bulldogs |
| Fibrosarcoma | Malignant | No breed predisposition |
| Hemangioma | Benign | No breed predisposition |
Symptoms include lethargy, loss of appetite, abdominal swelling, and pale gums from internal bleeding. Diagnosis involves physical exams, blood tests, ultrasound, and biopsy. A study published in the Journal of Veterinary Internal Medicine found that 50% of dogs with splenic sarcoma had no visible external symptoms.
Prognosis varies by tumor type and stage. Early detection improves outcomes, but most dogs with spleen sarcoma survive less than a year. Regular vet check-ups and monitoring for symptoms are important, especially for high-risk breeds. Maintaining a healthy diet and exercise routine supports health and early symptom detection.