title: Polymyositis as a paraneoplastic manifestation of rectal adenocarcinoma.
mesh_terms: D000230:Adenocarcinoma / Q000150:complications / Q000175:diagnosis*; D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D010257:Paraneoplastic Syndromes / Q000209:etiology*; D017285:Polymyositis / Q000209:etiology*; D012004:Rectal Neoplasms / Q000150:complications / Q000175:diagnosis*