title: Choriocarcinomatous metaplasia of a metachronous adenocarcinoma of the colon.
abstract: A second primary colonic adenocarcinoma developed in a 68-year-old man following resection of a rectal adenocarcinoma. Choriocarcinomatous change was found in the metachronous lesion with liver metastases and elevated beta-human choriogonadotrophin (HCG) serum titres.
authors: Department of Surgery, Bronglais General Hospital, Aberystwyth SY23 1ER, UK.
authors: R P
authors: RP
authors: Kiran
authors: R
authors: R
authors: Visvanathan
authors: C G
authors: CG
authors: Simpson
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D000368:Aged; D002822:Choriocarcinoma / Q000473:pathology*; D003110:Colonic Neoplasms / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008679:Metaplasia; D016609:Neoplasms, Second Primary / Q000473:pathology*