I was patting Shala yesterday and discovered what feels like a frozen pea on her back, just above her back leg (but definitely on the flat part of her back). Defiitely not a lipoma. It is small, hard and doesn't really move. I called the vet to see what they thought, and the girl I spoke to said it sounded like it could be a sebaceous cyst. Shala happened to have an appt today for her cartrophen injection, so I asked the RVT to feel it. She agreed it is not a lipoma. My inkling is to make an appt with my vet and get it aspirated. Am I being alarmist? Shala is 8 years old. Thanks in advance.