无功能胰岛细胞瘤起病隐匿，恶性发病率高，早期诊断较困难，主要依靠影像学检查。超声、CT、MRI能进行准确的定位诊断，并能鉴别良恶性病变。诊断明确后应积极行手术治疗，根据肿瘤的部位、大小和良恶性等选择不同的手术方式。

Diagnosis and treatment of nonfunctioning islet cell tumors        SUN Cheng-Yi, JIANG Jian-Xin. Department of Hepatobiliary Surgery, Affiliated Hospital of Guiyang Medical College, Guiyang 550001, China
Corresponding author: SUN Cheng-Yi, E-mail: chengyisun@medmail.com.cn
Abstract    Nonfunctioning islet cell tumors, malignant with a high incidence, onset occult. It is difficult to early diagnosis which mainly based on imaging examination. Ultrasound, CT, MRI can accurately locate the lesions, and can distinguish benign and malignant lesions. When diagnosed, surgical treatment should be actively. According to tumor location, size and benign or malignant tumour, different surgical approach was chosen.