多层螺旋CT在胰腺实性-假乳头状瘤诊治中的应用

目的 探讨多层螺旋CT(MSCT)在胰腺实性-假乳头状瘤(SPTP)的诊断和治疗中的意义,以提高SPTP的诊疗水平.方法 回顾性分析经手术病理证实12例SPTP的临床、病理学和CT资料.结果 SPTP具备典型的螺旋CT表现:平扫为边缘清晰的囊实性占位,增强扫描病灶囊性部分不强化,实性部分轻至中度强化,病灶边缘均可见光滑且明显强化包膜.MSCT三维成像可清楚显示病灶与周围脏器和血管的解剖关系.CT所见12例中2例包膜不完整,3例侵犯十二指肠肠壁,2例肠系膜上静脉受侵犯,1例与脾脏粘连紧密.12例均行手术切除,肿瘤均为单发,直径4 cm～18cm.术中所见的肿瘤与胰腺及周围脏器、血管的解剖关系与CT表现相符;病理所见与CT表现对应良好.结论 SPTP的CT表现具有一定的特征,结合临床表现,多数可在术前作出准确诊断,为治疗提供重要依据.MSCT三维成像技术可为术前评估和手术方案提供重要参考,提高SPTP的诊疗水平.

Application of MSCT in the diagnosis of solid pseudopapillary tumor of the pancreas

Objective To investigate the application of multi-slice spiral computed tomography(MSCT) in the diagnosis of solid pseudopapollary tumor of the pancreas (SPTP). Methods Clinical data and CT films of 12 patients with SPTP were retrospectively analyzed from January 2003 to December 2008. Results SPTP presented a typical cystic lesion with well-limited silhouette and no intensification in the cyst on enhanced CT scan. However, a slight to moderate enhancement in the solid components and a markedly enhanced envelope could be seen. Three dimensional images of MSCT can reveal clearly an anatomic relationship of the lesions with surrounding organs and blood vessels. Of 12 cases, there was one case showed that the envelope was incomplete, 3 with duodenal invasion, 2 with superior mesenteric vein involvement, and 1 with closed adhesion with spleen. All 12 patients underwent surgery and had only one tumor, tumor diameter ranged from 4 cm to 18 cm. The location of tumor in pancreas, the relation with surrounding tissue and the pathological presentation were helpful to make peroperative diagnosis. Three dimensional imaging technology of MSCT can offer important referrence for the preroperative evaluation and increase the diagnosis accuracy.