title: Colonoscopic preoperative localization using submucosal injection of radiolabelled colloid.
abstract: Malignant colonic polyps can be removed endoscopically but surgical resection is sometimes required. However, the polypectomy site can be difficult to locate. Current methods use various tattooing agents, with varying degrees of success. A new technique using preoperative injection of technetium-99m-labelled antimony colloid, with intraoperative localization using a handheld gamma probe, is described. Although unsuccessful in terms of localizing a previously partially resected polyp, the technique itself proved safe and simple, and has some advantages over other endoscopic approaches.
authors.affiliation: Department of Surgery, The Canberra Hospital and Calvary Hospital and The Australian National University, Austrialian Capital Territory, Australia.
authors.forename: Carolyn
authors.initials: C
authors.lastname: Cho
authors.forename: Sanjiv
authors.initials: S
authors.lastname: Jain
authors.forename: Mark
authors.initials: M
authors.lastname: Pilbeam
authors.forename: Noel
authors.initials: N
authors.lastname: Tait
authors.forename: Andrew
authors.initials: A
authors.lastname: Thomson
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging* / Q000601:surgery; D000368:Aged; D000965:Antimony / Q000008:administration & dosage; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D003111:Colonic Polyps / Q000000981:diagnostic imaging* / Q000601:surgery; D003113:Colonoscopy; D005753:Gastric Mucosa; D006801:Humans; D007267:Injections; D008297:Male; D011877:Radionuclide Imaging; D017556:Technetium Compounds / Q000008:administration & dosage
chemical_list: D017556:Technetium Compounds; C019096:technetium Tc 99m antimony sulfide; D000965:Antimony