My dog has a mushroom-shaped growth on his chest. Is it serious?

This could simply be a benign tumor, but it a dog Tucker's age, there is a chance it could be malignant. Any suspicious lumps should be examined by the vet. The vet can perform a test called a fine needle aspirate on it. To do this, the vet sticks a small needle into the lump to get a sample of its cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. Once the cause of the lump is diagnosed, the vet can discuss treatment options if needed. Give his vet a call to make him an appointment. Best of luck.

With any new lump or lump that is changing, it is always best to have your veterinarian look at them and a fine needle aspirated can be done to obtain a sample of cells. If these cells look suspicious of a malignancy, then your vet can recommend surgery. From the photos that you have posted, my guess is that these may be benign, non-cancerous masses. These can still cause problems, though, by bleeding and getting infected. I would schedule Max for an exam at your earliest convenience so that you and your vet can weigh the pros and cons of surgery since he is a senior.

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. There is no way of knowing what it is just based on its appearance. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have her evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good night!

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. There is no way of knowing what it is just based on its appearance. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. The accidents in the house are unlikely to be related to the mass. I recommend that you have her evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good day!

Since it has changed size in such a short time, I recommend getting it checked by your vet. She's very young to be developing growths or tumors but it isn't unheard of at her age. Your vet will do an exam, some lab work, probably using a needle to sample some cells from inside the lump to try to identify the kinds of cells inside and therefore what is causing the lump. Based on these results, your vet will be better able to tell you what is going on and how best to proceed from there, if it is benign or needs further investigation.

This could be either a benign or malignant growth. Based on Kane's age, it is more likely a benign growth. I recommend that you have Kane evaluated by your veterinarian to have a fine needle aspiration of the mass to find out what it is. This is a very easy, quick and pain-free procedure that takes little time and could provide a diagnosis to help determine the best course of action. Best of luck with Kane!

That is quite a sizable lump on Max! In a senior dog, there is always a chance that this lump could be a malignant tumor, but it could also be a benign tumor. Any suspicious lumps should be examined by the vet. The vet can perform a test called a fine needle aspirate on it. To do this, the vet sticks a small needle into the lump to get a sample of it's cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. I recommend taking Max into the vet tomorrow to have this lump examined and diagnosed so it can be treated as needed.