No ideas other than it might have been a liquid filled cyst that has started resorbing? What did the vet say it was? Resorption sounds better than turning black and falling off! I had a lab mutt years ago that popped up a ping pong ball sized knot on his neck/throat area, and when the vet did the needle biopsy, it turned out to be a fluid filled cyst that he drained completely and never came back, although prior to the biopsy, it felt like a solid mass, not a cyst. |