Lumps and Bumps: From Benign to Bad

Dr. Marty Greer joins host Laura Reeves for a deep dive on the various lumps and bumps we see on our dogs, from benign to bad, from histiocytomas to osteosarcoma.

“Histiocytomas are really, really common. And they are really scary looking because there are these pink bumps that show up on young dogs and they come seemingly out of nowhere. It's usually on the head, neck or on the feet, the front legs. You're gonna be afraid that it's something like a mast cell tumor. And mast cell tumors are bad, terrible, bad tumors. But histiocytomas are almost always in young dogs … if it's an older dog, it's more likely to be a mast cell tumor and not necessarily benign.

A chance to cut, a chance to cure

“And people are always under the impression that if you take (a lump) off that you're going to make it spread or it's going to be bad faster. And the answer is really that's not the case. You need to go in, take it off, take good enough margins that it's not likely to come back. But there are some masses that have little finger -like projections. And no matter how careful the surgeon is, they can sometimes be recurrent. And there's kind of two kinds of serious masses. They're the kind that are locally invasive and are likely to come back, but they're not going to metastasize to other organs like the lung, like the liver, other things like that. And then there's the bad ones that they're just gonna spread.”

Listen in to the full episode for a complete rundown on everything from sebaceous cysts and lipomas to mast cell tumors and osteosarcoma, how to differentiate them, treat them and when to see your vet.

Marty’s pro tip is to be sure to physically locate and mark the specific lump or bump in question on the dog before visiting the vet. While generally not an emergency, various lumps and bumps should be evaluated clinically.