Massive cyst (?) on dog’s hind leg
Hi! My mom’s Japanese Chin has had some type of tumour or cyst on his hind leg with a small hole in it for a couple years now. It’s grown it’s max size, it’s hard and we can squeeze it with absolutely no reaction. It used to bleed and ooze but hasn’t for probably 1 year+. What could this be? I can’t find anything similar on Google. He is 15. He doesn’t limp or anything from it.
Thanksâ¤ï¸