title: Unusual rectal bleeding caused by penetration of an intra-pelvic migrated guide pin.
authors.forename: Fang-Jung
authors.initials: FJ
authors.lastname: Yu
authors.forename: Che-Jen
authors.initials: CJ
authors.lastname: Huang
authors.forename: Jan-Sing
authors.initials: JS
authors.lastname: Hsieh
mesh_terms: D000368:Aged; D001858:Bone Nails / Q000009:adverse effects*; D003113:Colonoscopy; D003937:Diagnosis, Differential; D005548:Foreign-Body Migration / Q000150:complications* / Q000175:diagnosis; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D007416:Intestinal Perforation / Q000150:complications* / Q000175:diagnosis; D008297:Male; D012007:Rectum / Q000293:injuries*