[例 1 ]　患者女 ,59岁。空腹时出现头晕、心慌、出汗、抽搐 ,服糖后即可缓解约 5年 ,加重十余天。体检未见阳性体征。化验检查 :空腹血糖 1 .0 mmol/L,症状缓解期血糖 7.5mmol/L。B超示胰腺未见异常。 CT检查 :平扫见胰腺体部有一软组织块影 ,比胰腺密度略高 ,凸出于胰腺前缘 [Example 1] Female patient, 59 years old. Dizziness, palpitation, sweating, and convulsions occur on an empty stomach. After taking sugar, they can be relieved for about 5 years and aggravate for more than 10 days. No positive signs were found on the physical examination. Laboratory tests: Fasting blood glucose 1.0 mmol/L, remission of blood glucose 7.5 mmol/L. B ultrasound showed no abnormalities in the pancreas. CT examination: Plain pancreas see a soft tissue shadow of the body of the pancreas, slightly higher than the density of the pancreas, protruding from the front edge of the pancreas