How to safely diagnose a lump on an old cat with a heart condition?

Thank you for submitting your question regarding Milly. I will typically start with a procedure known as a fine needle aspirate. I use a small needle to collect a sample of cells to evaluate under the microscope. This can help to diagnose the mass. It is not as accurate as a biopsy, but it generally gives a lot of information. The cat needs to hold still and cooperate though. So cats are different to draw blood on awake. This may have been why the recommendation was made to anesthetize her and collect all the samples at once. I hope this information helps!

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. 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 him evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good day!

The vet can give her a full exam and then can take samples if the lump with a needle. These will be spread on slides and sent to the lab for analysis. They could also take some blood to check organ function.

Thank you for providing a picture of the lump on Beaju's back. It could simply be a wart, but there is always a chance that any lump on a senior cat could be malignant. Same for the lump on his front leg. 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 would take him into the vet on Monday to have these lumps examined and diagnosed so they can be treated as needed. I hope this helps!

Thank you for posting again with the pictures! Yes, I would definitely get this lump checked. 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 Patsy's vet a call to make her an appointment. Best of luck.

Hello, and thanks for using Petco Pet Education Center, formerly Petcoach. The only way to know for sure what this little growth is, would be to have it tested in some way. The least invasive way to test is to do cytology, where your vet can use a needle to remove a few cells from the lump and look at them under the microscope. Cytology is not always 100% diagnostic, but it is minimally invasive and often allows us to gauge a level of concern, or diagnose certain types of common masses. The way to know for sure what that lump is, would be to have it surgically removed and send the lump itself in for testing (histopathology). Histopathology nearly always gives us a diagnosis, but of course is more invasive. While Silver's age (as a young adult) makes him less prone to scary malignant growths, and growths that are very slow to change may turn out to be benign, there is no way to know for sure what the growth is without having it tested in some way. You may choose to leave it that way, but doing so without having it evaluated in some way is a little bit of a gamble. I know this isn't an absolute answer - but unfortunately the only answer can come from testing the lump. I'd say it's worth having a vet take a look at the lump for peace of mind. Hope this helps.

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. 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 him evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good night!