It has also been observed that the cancer typically manifests on middle adult dogs with a median age of 8 years, although there have been cases where younger hounds no older than 1 year of age have been diagnosed with mastocytoma. (mypetneedsthat.com)
The exact cause of mastocytoma in dogs remains a mystery, although the current observation is that certain breeds of dogs such as Boston terriers, Labrador Retrievers, Boxers, Pugs, Beagles, Schnauzers, and Bulldogs seem to be more vulnerable to the formation of mast cell tumors. (mypetneedsthat.com)
Mast cell tumors (MCTs)(also referred to as histiocytic mastocytoma, mast cell sarcoma, mastocystosis (when there is systemic involvement)-RRB- are cancerous proliferations of mast cells that can spread throughout the body. (caninecancer.com)