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My 2-year-old terrier has a red, growing lump on her leg. What is it?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | 45 lbs

female terrier, 2 years old, has a little zist on leg, is kind of red,it has grown a little last week,..less than a centimeter,maybe 5mm it diesnt hurt her, and she doesnt even lick it or nothing.

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1 Answer

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on October 9th, 2018

Unfortunately the photos are not very sharp when I try to enlarge them. The fact that this mass is growing is a little concerning. This may be a little abscess, cyst or tumor. You should have it examined by your veterinarian as a tumor should be removed ASAP, especially on the leg, as there is not so much skin available to close the incision after removal. An abscess can usually be treated with antibiotics and/or be lanced, and a cyst can be evacuated. 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.

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