title: Absent portal vein presenting as rectal bleeding: a case report.
authors.affiliation: Department of Surgery, Singapore General Hospital.
authors.forename: J S
authors.initials: JS
authors.lastname: Lee
authors.forename: K Y
authors.initials: KY
authors.lastname: Yeong
authors.forename: K C
authors.initials: KC
authors.lastname: Soo
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis / Q000209:etiology*; D006392:Hemangioma, Cavernous / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D008643:Mesentery; D010534:Peritoneal Neoplasms / Q000175:diagnosis / Q000209:etiology*; D011169:Portal Vein / Q000002:abnormalities*; D012002:Rectal Diseases / Q000175:diagnosis / Q000209:etiology*