Mast cell tumors are common in cats and have different characteristics than canine MCTs. Welfare management requires accurate grading and appropriate treatment selection.
Feline mast cell tumors have very different welfare implications depending on anatomical form. Cutaneous MCTs — common in Siamese and related breeds — are typically benign in biological behavior and surgically curable. The welfare impact is minimal with appropriate surgical management. Visceral MCTs, however, carry significant welfare burden — splenic MCTs cause systemic histamine effects including vomiting and gastrointestinal ulceration, while intestinal MCTs spread rapidly causing peritoneal disease with severe welfare deterioration.
Histamine effects from MCT degranulation are a welfare-critical management component for visceral disease. H2 blockers (omeprazole, famotidine) reduce gastric acid hypersecretion and prevent ulceration that causes additional welfare harm. These supportive measures should be implemented before and after surgical intervention as standard welfare practice.