Merck Manual

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Malignant melanoma arising from gingiva, dog
malignant-melanoma-from-gingiva-dog-villalobos-sized
Malignant melanoma arising from gingiva, dog

    Photograph of a pedunculated malignant melanoma arising from gingiva in a 17-year-old Labrador Retriever mix.

Courtesy of Dr. Alice Villalobos.