histiocytoma
Yep, looks just like Kaya's histiocytoma she currently has in her ear. My doc said it's all part of her allergies, that they develop from over-production of the histo-cytes or something like that, hence, histamine, histio-cytoma, the root is all the same: allergies!! So, my doc gave us prednisone to stop the production of histamine. He said that should treat the root problem. Also gave me Otomax (since it's in her ear), and told me to clean 2 x day with hydrogen peroxide. It's helping already!! Good luck, I will also try iodine / betadine.