title: Intraoperative high-resolution ultrasonography in the localization of occult endocrine pancreatic tumours.
abstract: Intraoperative pancraticosonography was employed in six patients to localize suspected endocrine tumours and to study the specific ultrasonic features. The cases included four insulinomas, one case of occult G-cell apudoma and one case of beta-cell microadenomatosis. Endocrine tumours are generally hypoechoeic and well defined with smooth borders. The study confirms that real-time operative high resolution sonography is a reliable technique to assist in the diagnosis of occult endocrine tumours and to guide the surgical approach.
mesh_terms: D000236:Adenoma / Q000175:diagnosis; D000328:Adult; D001079:Apudoma / Q000175:diagnosis; D005260:Female; D006801:Humans; D007340:Insulinoma / Q000175:diagnosis; D007432:Intraoperative Period; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000175:diagnosis* / Q000473:pathology; D014463:Ultrasonography