The skin that is removed today must be sent in for biopsy in order to establish the cause for the dead skin; potential reasons are thermal burn (heating pad, prolonged sun exposure) or interruption of the blood supply to the area (vasculitis, infarct/clot). (sometimes blood clots can occur during anesthesia). Make sure that the veterinarian asks for a dermatopathology consult on the biopsy to get the most information. Depending on biopsy results, further treatment or consultation with a veterinary dermatologist may be needed.
Kimberly Coyner, DVM DACVD
Dermatology Clinic for Animals of Las Vegas