病历资料:患者,女,32岁,腹胀、腹部不适6个月,加重一个月。上腹部CT检查:胰腺上方、胃大弯脾门前区见大小约9.3×7.6×7.8cm的类圆形软组织密度影,内密度尚均匀,CT值约32HU(图1);胃大弯侧受压,与胰尾界限欠清。腹膜后未见确切肿大淋巴结影。增强扫描后,腹腔内软组织病灶可见明显不均匀强化(图2)。病灶边缘可见低密度影。肿瘤周围血管受挤压移位。手术切除肿瘤及脾和胰尾部,肿瘤与胰尾部有系带相连。病理(图3):胰腺实性假乳头状肿瘤;免疫组化 Medical records: Patient, female, 32 years old, bloating, abdominal discomfort 6 months, aggravating a month. Upper abdominal CT examination: above the pancreas, the anterior segment of the large curved spleen see a size of about 9.3 × 7.6 × 7.8cm round soft tissue density, the density is still uniform, CT value of about 32HU (Figure 1) Pressure, lack of clearance with the tail of the pancreas. Retroperitoneal no apparent enlarged lymph nodes shadow. Enhanced scanning, intra-abdominal soft tissue lesions showed significant heterogeneous enhancement (Figure 2). Visible low-density edge of the lesion shadow. Surrounding blood vessels are squeezed and displaced. Surgical removal of the tumor and the spleen and tail of the pancreas, the tumor and the tail of the pancreas are ligated. Pathology (Figure 3): Pancreatic pseudopapillary tumors; immunohistochemistry