Abstract

Insulinoma is the most frequently seen functional pancreatic neuroendocrine tumor. Materials and Methods: We conducted a retrospective review of 42 patients with pancreatic neuroendocrine neoplasms diagnosed pathomorpgologically and treated at the A. V. Vishnevsky Institute of Surgery, between 2011 and 2015. Results: The sensitivity in the detection of insulinoma was as follows: ultrasound - 62%, CT - 82%, MRI - 87,5%, endoscopic ultrasound - 83,3%, intraoperative ultrasound - 94,8%. Conclusions: The presence of the tumor before the operation must be confirmed by at least 2 instrumental diagnostic methods. Nesidioblastosis be suspected when a negative search result insulinoma all methods, but the final verification of the disease is possible only at the morphological study.

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