title: A 31-year-old man with abdominal pain and a rectal nodule.
authors.affiliation: Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA.
authors.forename: Jacqueline
authors.initials: J
authors.lastname: Chu
authors.forename: J Harry
authors.initials: JH
authors.lastname: Isaacson
mesh_terms: D015746:Abdominal Pain / Q000175:diagnosis* / Q000209:etiology; D000328:Adult; D002276:Carcinoid Tumor / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D003967:Diarrhea / Q000175:diagnosis / Q000209:etiology; D004636:Emergency Service, Hospital; D006801:Humans; D059012:Lost to Follow-Up; D008297:Male; D009367:Neoplasm Staging; D012004:Rectal Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D057832:Watchful Waiting