Loki's biopsy is back. The abnormal cells seen under the microscope were caused by an abscess that resulted from a foreign object that burrowed under his skin. This could have been a bee stinger, or small piece of glass, wood, or metal. Whatever it was it had to small, because he never had a bleeding injury in that area. When I first saw the lump I thought maybe a wasp got him. He is still at the vet getting care. He is on stronger antibiotics to treat the infection and tranquilizer to keep him still during this part of his recovery.