title: A case of "eventual diagnosis.".
mesh_terms: D000230:Adenocarcinoma / Q000150:complications / Q000175:diagnosis*; D001416:Back Pain / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012811:Sigmoid Neoplasms / Q000150:complications / Q000175:diagnosis*