title: Carcinoma of the sigmoid colon secondary to a foreign body.
mesh_terms: D012809:Colon, Sigmoid; D003110:Colonic Neoplasms / Q000209:etiology*; D005547:Foreign Bodies / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012811:Sigmoid Neoplasms / Q000209:etiology*