Dog’s Lump May Be Cancerous

Any lump that appears to contain a lot of cells could potentially be a tumor, either benign or malignant.


Q. My dog has a lump on her chest and our vet aspirated it yesterday and found a lot of cells. She said it should be removed as soon as possible. Since she found a lot of cells does that mean it’s a cancerous tumor?

A. Lumps on dogs can be many things: tumors, abscesses (infection), hematomas (blood), cysts (fluid) or granulomas (scar tissue from an old abscess). For this reason, they all should be checked out with a simple aspiration procedure and the contents looked at under a microscope.

Any lump that appears to contain a lot of cells could potentially be a tumor, and tumors are either benign or malignant. Other than in the case of a lipoma (which are fat cells), any tumor is potentially cancerous. For this reason, the lump on your dog should be removed and submitted for biopsy.

Biopsy will give you a definitive answer as to what the lump is, and to make sure it was removed in its entirety, or indicate if more testing is needed to check for any spread.


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Eileen - 249708   Port Perry, ON

3/26/2013 5:01:42 AM

Interesting article and good information to know about lumps.

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Keith   State College, PA

9/3/2010 9:29:28 AM

Why do lab dogs like to lick face so

Why do lab dogs eat things that are
dangerous or harmful to their health (i.e.
mushrooms, wild berrys or rock salt)?

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