What to do about a liquid-filled growth on my senior dog's leg?

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.

At Destiny's age, I would be concerned this could be a malignant tumor and it's concerning how big it is. 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. I would take her into a vet today. Best of luck.

It could be that Lady has a cyst causing this lump. In a senior dog, it could also be a malignant tumor or a benign tumor. Without seeing her in person, I can't say for certain. If your vet sent her to a surgeon, then I would suspect that your vet believes it needs to be removed. I'm sorry you felt this surgeon was only worried about money, so I'd suggest speaking to your vet about a referral to another surgeon to get this lump diagnosed and possibly removed. It sounds like it's quite large if it's grapefruit size, and if it continues to grow, it could affect her ability to walk. In addition, if it is malignant, it needs to be removed as soon as possible. Best of luck, I hope this helps!

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!

This may be a little abscess, a cyst or a tumor (warts are benign tumors, btw.). You should have it examined by your veterinarian, as it is not possible to distinguish these by just looking at a photo. An abscess can usually be treated with antibiotics and/or be lanced, and a cyst can be evacuated. To identify a tumor, your vet may want to do a fine needle aspirate (he takes some material from the bump with a needle and then looks at it under the microscope) to determine whether the mass is concerning.

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.

Fluid filled structures on abnormal areas of the body are usually either cysts, abscesses, or tumors. The only way to know for sure is to have it examined by a veterinarian, and likely have it stuck with a needle to have the fluid examined.