Disease Summary help help Associated Targets () Explore Associated Targets list Mondo Description An aggressive malignant melanocytic neoplasm that arises from the rectum. Mondo Term and Equivalent IDs MONDO:0002167: rectum malignant melanoma DOID:1992: rectum malignant melanomaopen_in_newNCIT:C4640: open_in_newSCTID:276822007: open_in_newUMLS:C0349539: open_in_new