胰腺神经内分泌肿瘤（PNETs）定位诊断的准确性是决定病人手术成败和预后的关键。文献报道，超声内镜（EUS）对PNETs的定位诊断具有很高的敏感性，已成为术前定位诊断的重要手段。

Endoscopic ultrasound in the diagnosis of pancreatic neuroendocrine  tumors SHU Hui-jun, YANG Ai-ming.Department of Gastroenterology，Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730，China
Corresponding author: YANG Ai-ming,E-mail:yangaiming@medmail.com.cn
Abstract    Pancreatic neuroendocrine tumors (PNETs) are rare tumors with malignant potential. Endoscopic ultrasound (EUS) has been shown to be of great importance in the preoperative localization and diagnosis of PNETs and may likely be superior to other imaging techniques in the assessment of small tumors. The usefulness of EUS as a primary exploration after US or CT has been posited for tumor diagnosis and localization before surgery.