Find information on animal health topics, written for the veterinary professional.

Mast cell tumor, dog

Mast cell tumor infiltrating the left inguinal lymph node of a Boston Terrier. Notice the bruising and ecchymosis. The original tumor appeared as a fleshy skin tag on the left caudal thigh for 3 yr before it metastasized.

Courtesy of Dr. Alice Villalobos.