Rectal Melanoma

**Semantic type:** Neoplastic Process

**Definition:** An aggressive malignant melanocytic neoplasm that arises from the rectum.

**Synonyms:** - Malignant Melanoma of Rectum - Malignant Melanoma of the Rectum - Melanoma of Rectum - Melanoma of the Rectum - Rectal Malignant Melanoma