sodium-pertechnetate-tc-99m and Jejunal-Diseases

Topics: Diverticulitis; Erythrocytes; Gastrointestinal Hemorrhage; Humans; Jejunal Diseases; Male; Middle Aged; Radionuclide Imaging; Radiopharmaceuticals; Sodium Pertechnetate Tc 99m

The occurrence of ectopic gastric mucosa in Meckel's diverticula and duplications of the intestinal tract is a source of serious morbidity from bleeding and perforation in children. Intraoperative localization of the ectopic mucosa is aided by its occurrence in the duplicated intestinal segment or Meckel's diverticulum. However, its identification in the nonduplicated intestine poses problems for the surgeon faced with removal of the affected segment. The authors present a case of ectopic gastric mucosa in a nonduplicated jejunal segment and discuss the use of technetium 99m pertechnetate scanning in its localization.

Topics: Child, Preschool; Choristoma; Gastric Mucosa; Humans; Infant; Jejunal Diseases; Jejunum; Male; Radionuclide Imaging; Radiopharmaceuticals; Sodium Pertechnetate Tc 99m

Disseminated islands of gastric mucosa are very rare in the small intestine. The secretion of hydrochloric acid can lead to ulceration which results in gastrointestinal bleeding. It is often difficult to localize the focus in case of gastrointestinal blood loss especially in the small bowel. Technetium-99m-pertechnetate scintigraphy may be a helpful tool in detecting ectopic gastric mucosa. We report a case of a 21-mo-old boy with recurrent gastrointestinal bleeding. By using pertechnetate scintigraphy, extensive tracer accumulation in the jejunum and proximal ileum was detected. Histologically, multiple islands of ectopic gastric mucosa were found in about 50 excited mucosal and transmural biopsies. The unusual finding of disseminated accumulation of 99mTc-pertechnetate in the small intestine was the diagnostic clue for such a rare disease.

Topics: Biopsy; Choristoma; Gastric Mucosa; Gastrointestinal Hemorrhage; Humans; Ileal Diseases; Ileum; Infant; Jejunal Diseases; Jejunum; Male; Radionuclide Imaging; Sodium Pertechnetate Tc 99m

An 82-year-old man had his third episode of melanotic stool. Two previous workups had failed to localize the source of bleeding. A Tc-99m labeled RBC scan visualized the gallbladder early in the study. Administration of sincalide visually decreased the activity, confirming gallbladder activity. Three months later, at his second surgery, hepatic metastases were finally identified as the source of bleeding. In retrospect, the hepatic activity is inhomogeneous with at least two cold defects that could have represented hepatic metastases.

Topics: Adenocarcinoma; Aged; Diverticulum; Erythrocytes; Gallbladder; Gastrointestinal Hemorrhage; Hemobilia; Humans; Jejunal Diseases; Liver Neoplasms; Male; Neoplasms, Unknown Primary; Radionuclide Imaging; Sincalide; Sodium Pertechnetate Tc 99m

A patient with a chronic occult gastrointestinal bleeding site is described. Because an extensive examination failed to locate the site of bleeding, a heparin infusion was used in conjunction with a conventional Tc-99m labeled red cell bleeding study. A mid-jejunal ulcer was safely localized before elective surgery. A protocol for a heparin provocative bleeding study is proposed.

Topics: Aged; Chronic Disease; Erythrocytes; Female; Gastrointestinal Hemorrhage; Heparin; Humans; Jejunal Diseases; Radionuclide Imaging; Sodium Pertechnetate Tc 99m; Ulcer

High uptake of Technetium-99m Pertechnetate (99mTcO4) in situations unrelated to the presence of acid-secreting gastric cells has attracted recent attention. A 10 year old white girl, investigated for the possible presence of a Meckel's diverticulum, was found to have a partial volvulus of the proximal jejunal loop that exhibited intense localization of Technetium-99m Pertechnetate.

Topics: Child; Female; Humans; Intestinal Obstruction; Jejunal Diseases; Sodium Pertechnetate Tc 99m

Bleeding from angiodysplasia of the gastrointestinal tract has become widely recognized. In most patients there is a single focal lesion in the colon. Small bowel involvement is rare and usually associated with colonic lesions. There have been no reports of bleeding angiodysplasia affecting the small bowel only. We were able to detect bleeding from an isolated angiodysplasia of the jejunum and correctly localize it. Our diagnosis was greatly aided by the use of dynamic data collection and by the cinematic display of the data.

Topics: Aged; Angiography; Gastrointestinal Hemorrhage; Humans; Jejunal Diseases; Jejunum; Male; Radionuclide Imaging; Sodium Pertechnetate Tc 99m; Technetium