目的 探讨超声与多层螺旋CT诊 断胰腺实性假乳头状瘤(SPTP)的应用价 值。方法 回顾性分析2015年3月-2018年3 月我院收治的58例经手术病理确诊的SPTP 患者的临床资料。所有患者均于术前接受 超声和多层螺旋CT检查，分析其影像学特 征，并与手术病理检查结果进行对照。结 果 SPTP超声表现：30例肿瘤呈囊实性， 呈现等低回声和不规则无回声混合，部分 瘤体边缘可见少许血流信号，19例肿瘤呈 实性，低回声小结节样病灶，结节内和周 边未见明显血流信号，9例肿瘤呈囊性， 内部可见纤维分隔，可见散在血流信号。 CT表现：32例肿瘤呈囊实性，实性部分增 强扫描明显强化，囊性部分增强扫描未见 明显强化，18例肿瘤以实性结构为主，增 强扫描呈不均匀强化，8例肿瘤以囊性结 构为主，增强扫描显示囊壁和实性部分 明显强化。CT诊断SPTP的准确性(87.93%) 高于超声(72.41%)(P﹤0.05)。结论 SPTP 的超声与多层螺旋CT影像学表现均有特征 性，且CT诊断准确性更高，结合临床表现 和其他检查可与其他疾病进行鉴别。

Objective To evaluate the application value of ultrasound and multi-slice spiral CT in the diagnosis of solid pseudopapillary tumor of pancreas (SPTP). Methods The clinical data of 58 patients with SPTP diagnosed by surgery and pathology admitted to our hospital from March 2015 to March 2018 were retrospectively analyzed. All patients were given ultrasound and multi-slice spiral CT before operation, and the imaging features were analyzed and compared with the results of surgical pathology. Results SPTP ultrasound findings: 30 cases were solid-cystic tumors which showed a mixture of equal low echo and irregular echo-free, and some blood flow signals at the edge of some tumors, and 19 cases were solid tumors which showed low echo nodule-like lesions, no obvious blood flow signals within and around nodules, and 9 cases were cystic tumors which showed fibers separation and scattered blood flow signals. CT findings: 32 cases were solid-cystic tumors whose solid partial enhancement scans were significantly enhanced and cystic partial enhancement scans were not significantly enhanced, and 18 tumors were mainly with solid structures whose enhanced scans showed uneven enhancement, and 8 tumors were mainly with cystic structures whose enhanced scan shows that the capsule wall and the solid part were significantly enhanced. The accuracy of CT in the diagnosis of SPTP was higher than that of ultrasound (87.93% vs 72.41%) (P<0.05). Conclusion Both ultrasound and multi-slice spiral CT for SPTP have characterized imaging findings, and the diagnostic accuracy of CT is higher. Combined with clinical findings and other examinations can be differentiated from other diseases.