目的：探讨多层螺旋CT在诊断脐尿管癌的应用价值。方法回顾性分析9例经手术病理证实的脐尿管腺癌患者的CT表现。结果经横断位图像及重建矢状位图像显示9例肿瘤均表现为脐与膀胱顶部之间中线部位的占位性病变。9例中肿瘤浅分叶7例，类圆形2例，6例为囊实性，3例为实性；平扫肿瘤内可见点状、斑片状或环形钙化5例，增强后肿瘤实性成分明显强化7例，7例肿瘤局部与膀胱分界不清，其中3例见肿瘤压迫/突入膀胱，肿瘤腹膜转移合并腹腔积液2例，胸壁、腹壁及腹腔内转移1例，术前诊断脐尿管癌7例，1例误诊为膀胱癌，1例误诊为卵巢囊腺瘤，CT诊断符合率78％。结论脐尿管癌的多层螺旋CT表现有一定特征性，多层螺旋CT检查并对其定性和定位诊断具有很高的应用价值。%Objective To explore the application value of multi-slice spiral CT(MSCT) in the diagnosis of ura-chalcarcinoma. Methods The CT manifestations of 9 patients with pathologically confirmed urachalcarcinoma were retrospectively analyzed. Results The axial images and sagittal reconstruion images showed that all of the 9 cases of tumors presented as the space-occupying lesions at the midline between the navel and the top of the bladder, includ-ing 7 shallow leaf and 2 round, 6 of them were cystic and solid and 3 of them were solid and 7 solid tumors were of large flakes liquefaion necrosis in the centers; Five cases can been seen the dotted patchy or ring calcification via plain scanning the tumor, 7 cases with the tumor solid component enhanced via enhancement, 7 cases tumor were of locally unclear boundaries with the bladder, including 3 cases of tumor compression/broke into the bladder tumor peritoneal metastases with ascites in 2 cases, chest wall, abdominal wall and intra-abdominal metastasis, the preopera-tive diagnosis of urachalcarcinoma in 7 cases, 1 case was misdiagnosed as bladder cancer, 1 case was misdiagnosed as ovarian cystadenoma, the accordance rate of the CT diagnosis was 78%. Conclusion The multi-slice spiral CT mani-festations of urachal cancer have certain characristics and the multislice CT and its qualitative and positioning diagno-sis are highly valuable.
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