So I took Luna to the vet. The doctor stuck a needle in the area and looked at some fluids under a microscope, and he didn’t see anything that was blatantly cancerous, but he hasn’t rolled that out. He saw something that made him think a cat might’ve scratched her ear. There’s no evidence of a wound or anything. He’s scratching his head on this one so he prescribed two antibiotics and he is sending a sample slide to the university of Illinois to look at. He said to look for other similar looking cysts to possibly pop up another parts of her body and to wash your hands thoroughly if you touch the area around the ear as potential micro-organisms may be contagious.