Linda457 asks: "My dog started with a small red bump on the inside edge of his ear leather that grew into a large red shiny growth within days. The vet did a needle biopsy to rule out cancer and said the growth would dissipate back into his system. She said to remove it would either leave a chunk out of his ear or a pucker and I didn't want either. I decided to "wait and see" before putting him through surgery and within three weeks, the growth was gone! Has anyone experienced one of these histiocytomas on their dog?"