The biopsy called this cancer too. Cancer is a abnormal growth of cells in the body. For some reason, the cells begin to multiply and grow but the normal signal that controls this growth doesn't work. So cancer cells are abnormally growing cells from what was normal tissue in the body. Benign cancer tends to grow more slowly and doesn't want to spread throughout the body or move to the liver or lungs.
Malignant cancer is much more aggressive.
These growths not only grow fast, but they try to spread to other tissues or move to the liver and lungs. There is no way for your veterinarian to tell if a lump is a cancer without sending a sample to a pathologist. The veterinary pathologist will look at the tissue with a microscope and determine if it is cancer or not, malignant or benign, and whether we were able to remove all of the cancerous cells. Treating cancer in pets can involve many different methods. Take the small eyelid lump.