Anorectal melanosarcoma arising in a hypertrophied papilla.
D001003:Anal Canal; D001005:Anus Neoplasms; D006801:Humans; D007420:Intestine, Large; D008545:Melanoma; D012004:Rectal Neoplasms; D012007:Rectum
ANUS/neoplasms; MELANOMA; RECTUM/neoplasms