title: Value of tumor localization in patients with insulinoma.
abstract: Based on our patient material, preoperative localization of insulinoma was correct with sonography in 13 (61.9%) of 21 patients, with computed tomography in 3 (21.4%) of 14 patients, with computed tomography with bolus injection of contrast medium in 11 (73.3%) of 15 patients, with angiography in 20 (66.6%) of 30 patients, and with percutaneous transhepatic portal vein catheterization with selective measurement of insulin in 10 (76.9%) of 13 patients. Intraoperatively, 40 (95.2%) of 42 insulinomas were palpable and 12 of 16 insulinomas were identified during intraoperative sonography. Although 95.2% of the insulinomas can be palpated, we would support additional diagnostic localization since it may improve the reliability of palpation.
authors.affiliation: Department of General and Abdominal Surgery, Mainz Medical School, Federal Republic of Germany.
authors.forename: T C
authors.initials: TC
authors.lastname: Böttger
authors.forename: W
authors.initials: W
authors.lastname: Weber
authors.forename: J
authors.initials: J
authors.lastname: Beyer
authors.forename: T
authors.initials: T
authors.lastname: Junginger
mesh_terms: D007516:Adenoma, Islet Cell / Q000175:diagnosis*; D000328:Adult; D000368:Aged; D003952:Diagnostic Imaging; D005260:Female; D006801:Humans; D007340:Insulinoma / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000175:diagnosis*; D012189:Retrospective Studies