title: Computed tomographic detection of nonbeta pancreatic islet cell tumors.
abstract: Twenty-five patients with nonbeta pancreatic islet cell tumors were examined by computed tomography (CT). In eight patients (32%), the primary pancreatic tumor was identified, and in ten patients (40%), hepatic metastases were seen. Only one of the eight tumors seen on CT was loager tha 10 cm; the other seven ranged from 4 to 9 cm in diameter. Tumors in ectopic locations or possible cellular hyperplasia rather than a discrete tumor may account for the relative insensitivity of CT visualization, particularly among patients with Zollinger-Ellison syndrome.
mesh_terms: D007516:Adenoma, Islet Cell / Q000000981:diagnostic imaging*; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed