Approximately 20 percent of all animal skin masses on cats are mast cell tumors and of those skin masses, 90 percent are benign. They can form anywhere on the body, but it’s important to get them taken care of by a veterinarian to ensure the health of your cat. If you live in Cambridge or Ontario and notice any unusual lumps or bumps on your cats’ skin, contact the Emergency Veterinary Clinic of Waterloo Region for an emergency hospital visit.
What are Mast Cell Tumors in Cats?
Mast cells are a type of white blood cell that makes up a normal part of a cat’s immune system. Occasionally, these cells can turn into a tumor. There are typically two types of mast cell tumors:
- Skin tumors or cutaneous cell tumors
- Organ tumors or visceral mast cell tumors.
Symptoms of Mast Cell Tumors
Scratching and chewing are two of the most common symptoms of mast cell tumors in cats. During a flare-up, some cats may also be lethargic and have a decreased appetite. Weight loss and vomiting are also common in cats with tumors. More severe symptoms include an enlarged liver or spleen as the disease progresses.
What to Do if Your Cat Has a Mast Cell Tumor
If you’ve noticed a lump or bump on your cat’s skin, a trip to your veterinarian at the animal hospital or emergency clinic is needed. A fine needle aspiration (FNA) is generally performed of the tumor where a small needle is inserted into the mass, cells are withdrawn and placed on a glass slide. These cells are then observed under a microscope. For internal masses, your veterinarian may perform an ultrasound on your cat and take a small sample.
At the Emergency Veterinary Clinic of Waterloo Region, we provide emergency services for patients who live in Cambridge or Ontario. Contact us at (519) 650-1617 to schedule an appointment or for more information.