title: Pancreatic venous sampling and arteriography in localizing insulinomas and gastrinomas: procedure and results in 55 cases.
abstract: A comparative study of arteriography and pancreatic venous sampling (PVS) was performed in 55 patients. Twenty-seven patients with Zollinger-Ellison syndrome, 24 with insulinomas, and 4 control subjects underwent arteriography and PVS (for pancreatic hormonal radioimmunoassays) in an attempt to localize a suspected endocrine tumor. Accurate tumor localization was achieved by arteriography in 13% of the cases of gastrinoma and 29% of the cases of insulinoma. Although arteriographic signs could be described retrospectively in 62% of insulinomas, erroneous localization was relatively frequent. In contrast, localization by PVS was successful in 36 out of the 38 patients who underwent surgery; false-negative results were obtained in two patients, but in no case did PVS result in false localization. In 27% of insulinomas and 43% of gastrinomas, gross examination during surgery was negative but microscopic tumors were identified.
mesh_terms: D007516:Adenoma, Islet Cell / Q000175:diagnosis*; D000328:Adult; D000368:Aged; D000792:Angiography; D004379:Duodenal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D007340:Insulinoma / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D010187:Pancreatic Hormones / Q000097:blood*; D010190:Pancreatic Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011863:Radioimmunoassay; D015043:Zollinger-Ellison Syndrome / Q000175:diagnosis* / Q000000981:diagnostic imaging
chemical_list: D010187:Pancreatic Hormones