Thank you Luella for the information. I do not know if this is a fatty tumor or not. We have not had her tested. Could you tell me where I can buy this collodial silver?? Is this topically or does it have to be administered orally? And how much of a dosage are you giving to your furbaby Misty? Our Babe weighs about 18 or so pounds. She's lost a little weight due to the raw diet. It's keeping her rather lean. Thanks again!:)