Growing, painless lump on my very old dog's leg. What should I do?

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. Given the fact that it is growing quickly, a malignant tumor is more likely. 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 day!

Hello my name is Dr. Elyse Macartney, and I would like to help answer you questions regarding Brandi's skin lump today. First of all thank you for sending the picture of the lump. From the picture you have sent the lump appears to be a skin growth. There are several types off lumps or masses that can grow in the skin of dogs such as sebaceous cysts, warts, abscesses, lipomas, and several types of cancers. Some of these cancers are benign and some are malignant, so careful observation is important, as well as having a vet examine it if you are concerned. My first step of advice for you would be to use a ruler to measure the lump today. Then repeat that measurement every few weeks. Continue to monitor the lump for growth, ulceration, pain, bleeding, swelling, and changes in texture or color. Rapidly growing and changing masses are more concerning, and may be a sign of malignancy. Because this is a new mass and because you have already observed growth, I would suggest taking Brandi in to have the mass examined by her veterinarian. The veterinarian will most likely want to take a sample of the cells within the mass using a FNA (fine needle aspirate). Using cytological examination of those cells, the type of mass can be identified and a treatment plan created. I hope this information was helpful, and I have included the link to further articles below. https://www.petcoach.co/article/lumps-on-dogs-when-you-should-be-concerned/ https://www.petcoach.co/article/can-pets-get-skin-cancer/

Thanks for using Petco Pet Education Center, formerly Petcoach! These could be benign or malignant growths. 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. Since he has not been drinking well, they would also be able to check if something else is also affecting him by checking into other possible concurrent issues such as gastroenteritis or pancreatitis for instance. I am really hoping for something benign. Good luck and best wishes!

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.

Hi there and thank you for using pet coach to address your concern. What i am seeing in the pictures is likely a sebaceous cyst that ruptured. These are common with older dogs and are benign. When these rupture there is a chance they will become infected so the best treatment is to have it removed to prevent this from happening. I would recommend consulting with your veterinarian about having this removed. I hope this helps! Please let me know if you have any other questions or concerns.

Hello. This is definitely a tumor, but it is impossible to say if it is a relatively harmless benign one, or a dangerous potentially aggressive malignant tumor. My guess is that this is very benign & will cause no great harm to Poochi. It can continue to grow, but may not ever affect her overall life. The best thing to do is to have your veterinarian perform a fine needle aspirate where a few cells are removed from the lump & examined under the microscope. Hopefully, all that will be seen are benign fat cells ( lipoma ), but if highly differentiated cells are seen, this would indicate that removal is advised. Thanks for using Petco Pet Education Center, formerly Petcoach.

Thank you for providing a picture of Mia's lump! It could be a benign tumor, a cyst, or a malignant tumor. Unfortunately in a senior dog, there is always 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 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 her into the vet in the next couple of days to have this lump examined and diagnosed so it can be treated as needed. Good luck, I hope this helps!