Mast Cell Tumors in Dogs

Last Modified: September 17, 2012


My dog had a lump biopsied yesterday. My vet thinks it is a mast cell tumor. What can you tell me about mast cell cancers?

Erika Krick, VMD, DACVIM Veterinary Medical Oncologist, University of Pennsylvania, responds:


The behavior of mast cell tumors can be quite varied. Often staging is recommended after the diagnosis is made, and the recommended treatment depends on the staging results, size of the tumor, and other factors. I recommend that you discuss these options with your veternainarian or make an appointment with a veterinary oncologist.

Learn more about mast cell tumors in dogs.

This question and answer was part of the OncoLink Brown Bag Chat Series. View the entire transcript from When a Beloved Pet has Cancer.