胃泌素瘤患者中恶性者占60～70％,50％在确诊时已有肝、脾、骨、淋巴结、腹膜等处转移,了解有无转移对决定能否手术至关重要。如MEAI型多为多发性内分泌腺瘤,60～70％为多发病灶,其病灶比胃泌素瘤小,且常有胰外肿瘤,如胃、十二指肠壁、胰周围淋巴结等处肿瘤(25～45％),术中常难以确定原发灶,故应充分做好术前检查。 CT 口服gastrografin,并快速静注碘造影剂,然后薄层扫描(层距、层厚均为5mm)。最近,Wank等报道61例,CT诊断肝转移灶与原发灶的特异性分别高达98％和95％。CT所见不明显时应做血管造影(AG)等其他检查。CT对肿瘤的显示率与其大小及部 In patients with gastrinoma, malignant patients account for 60 to 70%, and 50% have metastasized to the liver, spleen, bone, lymph nodes, and peritoneum at the time of diagnosis. It is important to understand whether or not metastasis can determine the feasibility of surgery. For example, the MEAI type is mostly multiple endocrine adenomas, 60 to 70% are multiple lesions, the lesions are smaller than gastrinoma, and there are often extrapancreatic tumors, such as gastric, duodenal, and pancreatic lymph nodes. (25 ~ 45%), it is often difficult to determine the primary lesion during surgery, it should be fully preoperative examination. CT oral gastrografin, and rapid intravenous injection of iodine contrast agent, and then thin-layer scan (layer thickness, layer thickness are 5mm). Recently, Wank et al reported 61 cases. The specificity of CT in the diagnosis of liver metastases and primary lesions was as high as 98% and 95%, respectively. When CT is not obvious, other examinations such as angiography (AG) should be performed. CT imaging rate and size of tumors