melanoma +
rectum cancer +

amelanotic melanoma
choroid spindle cell melanoma
ciliary body spindle cell melanoma
epithelioid cell melanoma +
familial melanoma
gallbladder melanoma
iris spindle cell melanoma
malignant anus melanoma
malignant spindle cell melanoma
melanomatosis
mucosal melanoma
rectum adenocarcinoma +
rectum lymphoma
rectum neuroendocrine neoplasm
rectum sarcoma +
rectum sarcomatoid carcinoma
rectum squamous cell carcinoma +
scrotum melanoma
skin melanoma +
spinal cord melanoma
uveal melanoma +