Mast Cell Tumors

descriptionOverview

Mast cell tumors (MCTs) arise from mast cells in the skin and can range from benign lumps to aggressive cancers. They’re deceptive — they can look like any skin bump and change size rapidly due to histamine release. Any new skin lump on a dog should be checked by a vet. Treatment depends on grade: low-grade tumors are cured by surgery alone, while high-grade tumors require chemotherapy.

searchSymptoms to Watch For

• warningNew skin lump that changes size (swells and shrinks)
• warningRedness and irritation around the lump
• warningVomiting or loss of appetite (from histamine release)
• warningBruising easily near the tumor
• warningMultiple skin lumps

restaurantHow Nutrition Helps

While diet cannot prevent mast cell tumors, nutritional support during treatment improves outcomes. Omega-3 fatty acids reduce inflammation and may have anti-tumor effects. Antioxidants support the immune system during chemotherapy. Maintaining calorie intake and body condition during treatment is critical for recovery.

directions_runHow Activity Helps

Maintain normal activity levels. Post-surgery, follow your vet’s instructions for restricting activity during wound healing.

verifiedPrevention Tips

• check_circleCheck your dog’s skin monthly for new lumps
• check_circleHave any new lump aspirated by your vet — don’t wait
• check_circleDon’t squeeze or irritate skin lumps (releases histamine)
• check_circleEarly surgical removal gives the best prognosis
• check_circleRegular vet checkups with full body skin exam