What does mast cell tumour removal cost in a dog?

EMReviewed by Eben Martin, Veterinary Surgeon · Updated August 2026

Plan for $2,000 to $5,000 for a properly planned mast cell removal with adequate margins, more where the location is difficult or reconstruction is needed, and a few hundred dollars beforehand for the needle test and staging that should precede any excision. A simple lumpectomy price on a known mast cell tumour is a quote for the wrong operation.

Mast cell tumours are the classic case for doing it right once: they extend microscopic fingers beyond what you can feel, so proper surgery takes a planned margin of healthy tissue. The pathology report afterwards, which grades the tumour and confirms whether margins are clean, is not an optional extra; it is the difference between finished and falsely finished.

Budget lines owners forget: the histopathology itself, a recheck schedule, and in higher grade tumours a possible oncology consult. If your quote is a single line that says lump removal, ask for the itemised version and where the margins are in it.

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