Ask a Dog Vet and Get Answers to Your Dog Veterinary Questions
I am sorry to hear you are worried about Jill. My name is Rebecca. I am a veterinarian and will do my best to help.
Does this lump seem to hurt or bother her? How long has it been there?
This could be a fluid filled lump, like a cyst or infection/abscess. Or it could be a growth of some sort. You can't tell what any lump is just by looking at it, and feeling it. The only way to know what any lump is would be to do FNA, fine needle aspiration, and insert a fine sterile hollow needle into it and aspirate some cells or fluid to examine microscopically. Then you can see if the lump contains clear fluid, pus, or is solid and if the cells in a solid lump are benign or not.
If pus is seen, I would then lance the lump to let the infection drain. If only clear noninfection fluid is seen, it may be a benign cyst, or a "seroma" which will go away on its own. If cancerous cells are seen, the lump needs to be removed.
Let me know if this helps and what other questions I can answer.
I did not hear back from you; I hope you can see what I wrote1
Let me know if this was helpful and answered your questions.
How is Jill doing?