当临床症状和激素分析能肯定有分泌胰岛素的肿瘤时,就应该考虑手术治疗。术前对胰岛细胞瘤作出精确的定位诊断是一重要而又困难的问题。目前所应用的方法是血管造影、同位素扫描、超声波检查和电子计算机断层摄影。其中最为可靠的是血管造影,选择性的腹腔动脉造影能清晰地显示大约70％的胰岛细胞瘤,小于1cm的肿瘤则难以发现。当血管造 Surgical treatment should be considered when clinical symptoms and hormonal analysis can confirm the presence of insulin-secreting tumors. Precise localization of islet cell tumor before surgery is an important and difficult problem. The current methods used are angiography, isotope scanning, ultrasound examination, and computed tomography. The most reliable of these is angiography. Selective celiac angiography clearly shows approximately 70% of islet cell tumors. Tumors smaller than 1 cm are difficult to detect. When vascular