My 10-year-old Labrador has a small, painless skin lump. What is it?

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/

This looks like a benign fatty mass. They are common in older dogs and are not attached to deeper tissues usually. I’m glad you are watching it. The only way to know for sure is to have a needle aspirate and cytology done, which I recommend. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Jack.

Hi there and thank you for using Pet Coach! It is difficult to say what the growth you are seeing is since there are no pictures. Seeing that Carl is quite a young dog, I would suspect what you are seeing is benign. Many times in dogs this young when we see a mass it is likely a papilloma secondary to exposure to the papilloma virus or a histiocytoma. Both of these typically resolve on their own and will occasionally need surgical intervention for removal. If the mass is not going away on its own or is multiplying in number, I would have this examined by a veterinarian and have further testing performed to help further determine what this could be so that the most appropriate treatment can be recommended. I hope this helps guide you in the right direction! I am also available via consultation if needed.

Thanks for using Petco Pet Education Center, formerly Petcoach! I work with cancer daily and I do think there is a good chance that it is in fact a benign fatty tumor as older labs get those frequently. However, it could also be something malignant such as a mast cell tumor, sarcoma, among others. This is most of the time differentiated with a test called a fine needle aspirate which is easy, cheap and pain-free. Sometimes, a biopsy is required for a diagnosis. Have Laya evaluated by your veterinarian to have this test performed to try to sort out what the diagnosis is so that the best course of action can be determined. Keeping my fingers crossed that it is something benign!

Although a picture would help to define better the nature of it, generally speaking, this kind of lump/growth needs to be ideally assessed by your veterinarian to have a definitive and specific answer. Usually there are two ways your vet can do that a part from examining it directly during physical examination. A biopsy can be taken under local or general anesthetic, otherwise a smaller sample through a fine needle can be aspirated (this technique is called FNA= fine needle aspiration). Differentials include skin cysts, infections, benign or more sinister type of tumors. Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

This could be a hematoma, a cyst or a tumor. The most common tumors in this location would be a fatty tumor, which usually is benign. However the only way to determine what kind of mass this is is to take Rocky to your veterinarian for an exam. 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.

This could be a seroma from an injury, a cyst, abscess or a tumor. Cysts and abscesses need to be drained by a vet. If your vet suspects a tumor, he will do a fine needle aspirate to determine whether it is a harmless lipoma, which does not need to be removed unless it is ulcerating or bothers the dog due to its location or size, or another tumor that needs to be removed. Please make an appointment with your veterinarian for an exam of the mass.