Mast cell tumors are among the most common canine cancers, ranging from benign to highly aggressive, with welfare management central to treatment decisions.
Dogs with mast cell tumors may experience itching, swelling, and systemic effects from histamine release. High-grade tumors cause progressive deterioration requiring careful welfare monitoring. Veterinary oncology has advanced significantly, but owners must weigh treatment intensity against quality of life, particularly for elderly dogs or those with metastatic disease.