title: Repeated technetium-99m pertechnetate scanning for children with obscure gastrointestinal bleeding.
abstract: From 1980 to 1992, we found false negative results from Technetium (Tc)-99m abdominal scans in seven children with massive gastrointestinal bleeding from ectopic gastric mucosae. Other examinations--including endoscopy, gastrointestinal series studies, angiography, and Tc-99m-labeled red blood cell scans to search for the source of the bleeding--were all in vain. Positive results were only obtained after repeated Tc-99m abdominal scans. Surgical specimens confirmed that ectopic gastric tissue was the source of bleeding in five patients with Meckel's diverticulum and two patients with enteric duplication.
authors.affiliation: Department of Pediatrics, Chang Gung Medical College, Taipei, Taiwan, R.O.C.
authors.forename: M S
authors.initials: MS
authors.lastname: Kong
authors.forename: S C
authors.initials: SC
authors.lastname: Huang
authors.forename: K Y
authors.initials: KY
authors.lastname: Tzen
authors.forename: J N
authors.initials: JN
authors.lastname: Lin
mesh_terms: D002675:Child, Preschool; D002828:Choristoma / Q000150:complications / Q000000981:diagnostic imaging*; D005753:Gastric Mucosa / Q000000981:diagnostic imaging*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D007223:Infant; D008297:Male; D011237:Predictive Value of Tests; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m
chemical_list: D013670:Sodium Pertechnetate Tc 99m