Merck Manual

Please confirm that you are a health care professional

Malignant melanoma of lip and buccal mucosa, 12-yr-old Labrador mix
Malignant melanoma of lip and buccal mucosa, 12-yr-old Labrador mix

This mucocutaneous malignant melanoma appeared rapidly and exhibited a papillated surface. It was pedunculated, with a wide base involving the buccal mucosa.

Courtesy of Dr. Alice Villalobos.