Question:
Go to the vet and make sure that is all it is, not even a vet can be sure just by looking at it.


• 20-25% of all skin/subcutaneous tumors in dogs are mast cell tumors (MCT)

• 10-15% of canine MCT are clinically indistinguishable from subcutaneous lipomas (fatty tumors)

• Definitive diagnosis of MCT cannot be made without cytologic (aspirate) or histologic (biopsy) evaluation of the lesion


http://www.vrcc.com/disease_mc_tumors.shtml

Answer: