My senior dog has large lumps near her back legs and is limping.

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.

Looking at the photo and considering your description of the progression of this, I would suspect that it is a growing mass. It could simply be a fatty lump such as a lipoma. Other possibilities would be a soft tissue swelling due to trauma, but this seems less likely considering the progression. I would head to the vet and get them to test the lump to see exactly what it is. If it is just a lipoma and not causing bother it should not need to be removed.

Thanks for using Petco Pet Education Center, formerly Petcoach! The fact that these biopsies have come back inconclusive does not mean that this is not cancer. Unfortunately, this is very likely an aggressive form of cancer. After seeing these images, my main concern is that this is possibly a tumor arising from one of the ribs or sternebrae such as osteosarcoma for instance. In one of the images I see that there is likely pulmonary nodules which are most likely due to metastasis or spread of this cancer. It is hard for me to advice further without being able to look at more images or know more about the case. I would encourage you to check in again with them as another biopsy could be performed. Also, if there is truly already signs of metastasis, the treatment options and prognosis are also limited. I would mention to them the possibility of being referred to a veterinary oncologist who can look at the case with more details and advice further. I really hope they can help you and your boy!

Thank you for submitting your question regarding Abby. I am glad that she will see her veterinarian. She could have a cancerous growth, but hopefully it is a benign mass such as a cyst or other type of growth. A procedure known as a fine needle aspirate is commonly performed to diagnose a mass. The veterinarian will use a small needle to collect a sample of cells to evaluate under the microscope. Based on these results, treatment recommendations can be made. For example, if the mass appears cancerous, then surgery will be recommended. Bone cancer occurs in dogs, but is not common in the location shown in your pictures. So this is less likely. I hope this information helps!

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!

i am afraid these could be benign or malignant tumors. Since Nealy is an older dog, this is not uncommon. Lipomas (fatty tumors, usually benign, they can actually be hard) or mast cell tumors come to mind when looking at your photos. It could also be a very extreme allergic reaction to possibly a shampoo at the groomers. 1) do not panic 2) make an appointment with your veterinarian for an exam. He will likely want to take a so-called FNA (Fine Needle Biopsy) where he takes a small amount of tissue through an injection needle, puts this on a glass plate and looks at it under the microscope. This will give your vet an idea what he is dealing with. He may also send this material to a lab to be examined. Once you and dyour veterinarian know what type of mass you are dealing with , you can discuss treatment plans.

Thanks for using Petco Pet Education Center, formerly Petcoach! Without seeing Genesis it's hard to say. If the lumps are symmetric and soft, it is likely fatty subcutaneous tissue. Like "love handles" in people. Again, without seeing her I can't say that for sure but this is a common area where fat is stored on dogs and owners commonly are worried about it. The best diagnosis is having a vet stick a needle in it and look at the cells under a microscope. I hope this helps! Kisses to Genesis!