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目的 研究无功能性胰岛细胞瘤的临床及影像学特征 ,并进行对照分析及鉴别诊断。材料与方法 选取经病理证实的无功能性胰岛细胞瘤 2 0例。全部患者术前均行CT、B超检查 ,观察肿瘤的位置、数目、大小 ,瘤内有否出血、坏死、囊变以及钙化 ,局部组织的浸润 ,远处脏器的转移等。结果 位于胰头部 9例 ,胰体、尾部 11例 ,均为单发性肿瘤 ,肿块直径 3 .0～ 14 .2cm ,平均8.1cm。 12例发生坏死、囊性变 (60 % ) ,2例肿瘤有钙化 (10 % ) ,6例发生转移 (3 0 % )。结论 加深对无功能性胰岛细胞瘤临床表现、影像学特征的认识有助于提高该病的诊断率。
Objective To study the clinical and imaging features of nonfunctioning islet cell tumors, and to conduct control analysis and differential diagnosis. Materials and Methods Pathologically confirmed non-functioning islet cell tumors in 20 cases. All patients underwent CT and B-ultrasound before surgery to observe the location, number, and size of the tumor, whether there was hemorrhage, necrosis, cystic degeneration and calcification, local tissue infiltration, and distant organ metastasis in the tumor. The results were located in the head of the pancreas in 9 cases, pancreatic body, tail in 11 cases, are all single tumors, tumor diameter 3. 0 ~ 14 .2cm, an average of 8.1cm. Necrosis and cystic degeneration occurred in 12 cases (60%), calcification in 2 cases (10%), and metastases in 6 cases (30%). Conclusion The deeper understanding of the clinical and imaging features of nonfunctioning islet cell tumors will help improve the diagnosis rate of the disease.