Mast Cell Cancer in Dogs?

Any tumor suspicious of being a mast cell tumor needs to be removed with wide margins. Think of these as the "melanomas" of the dog world. Mast cell tumors can get large locally as well as spread to the internal organs. Make sure that the lump gets sent into a reference lab so that the type of lump can be determined and the mast cell staged. Hope that it isn't a mast cell or that it is a stage 1 mast cell.