Thank you for the photo, Gail. That's truly a remarkable tumor. The best thing I can say is that it's likely to be benign or very low malignancy because it hasn't killed this dog although it has reached an alarming size. I applaud your wanting to help this misfortunate dog but you need to know what you'd be getting involved with. Removal of a tumor of such size would necessitate the work of a specialist veterinary surgeon. Reconstructive surgery ("plastic surgery") would be necessary following removal. Pre-operative blood work and X-rays would be necessary prior to surgery because we don't know if this dog is capable of undergoing the extensive anesthesia necessary. Your expense would be considerable - in the thousands of euros. Unfortunately, the great majority of vets would take one look at this dog and recommend euthanasia - particularly if the dog is aged as I expect.Please respond with further questions or concerns if you wish.