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My old dog has a shoulder lump. Is it a benign cyst or cancer?

Updated On September 23rd, 2025

Pet's info: Dog | Dachshund miniature | Male | neutered

My 14 y.o dog has had a round filled cyst on his shoulder for months. He has vomited once and his skin feels moist. I thought this was a benign cysts since he is old but I am worried that it might be lymphoma. If it is I have waited too long. Vet never said anything 7 months ago, but it was smaller then. Also he his hair has been thining this year. What do you think?

1 Answer

Most Helpful Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on February 23rd, 2018

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.

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