CAJ | 학술논문

目的：探讨原发性输尿管癌的M SC T表现特征。方法回顾性分析经手术病理证实的20例原发性输尿管癌患者资料，患者均行MSCT平扫加动态增强扫描检查，并采用MPR、CPR、MIP和VR技术重建图像，分析其影像表现。结果①肿瘤部位、大小：发生于左侧输尿管9例（9／20），右侧11例（11／20）；位于上段3例（3／20），中段6例（6／20），下段11例（11／20）。肿瘤横径0．9～2．1cm ，纵向侵犯范围1．5～5．8cm ；②MSCT平扫：主要表现为不同程度的输尿管壁增厚。15例（15／20）管腔呈偏心性狭窄，其中11例管腔内软组织结节或肿块，5例（5／20）呈向心性狭窄；③增强扫描：20例均呈明显强化，以实质期强化最为显著。输尿管管腔内充盈缺损，边缘不规则，均伴有肾脏、输尿管不同程度的积水；④病理诊断：20例病理学诊断均为移行上皮癌。结论 M SC T增强扫描及二、三维重建技术可显示肿瘤的部位、范围及周围侵犯情况，对原发性输尿管癌的早期诊断及鉴别诊断具有较高的临床价值。
목적：탐토원발성수뇨관암적M SC T표현특정。방법회고성분석경수술병리증실적20례원발성수뇨관암환자자료，환자균행MSCT평소가동태증강소묘검사，병채용MPR、CPR、MIP화VR기술중건도상，분석기영상표현。결과①종류부위、대소：발생우좌측수뇨관9례（9／20），우측11례（11／20）；위우상단3례（3／20），중단6례（6／20），하단11례（11／20）。종류횡경0．9～2．1cm ，종향침범범위1．5～5．8cm ；②MSCT평소：주요표현위불동정도적수뇨관벽증후。15례（15／20）관강정편심성협착，기중11례관강내연조직결절혹종괴，5례（5／20）정향심성협착；③증강소묘：20례균정명현강화，이실질기강화최위현저。수뇨관관강내충영결손，변연불규칙，균반유신장、수뇨관불동정도적적수；④병리진단：20례병이학진단균위이행상피암。결론 M SC T증강소묘급이、삼유중건기술가현시종류적부위、범위급주위침범정황，대원발성수뇨관암적조기진단급감별진단구유교고적림상개치。
Objective To assess CT characteristics of primary ureteral carcinoma .Methods Nineteen patients (14 males and 5 females) with primary ureteral carcinoma proved histopathologically were collected from January 2011 to August 2014 .The unenhanced and contrast‐enhanced CT were performed in all patients .The MPR ,CPR ,MIP and VR images were generated from raw data .Results ①The localization of tumor:9 cases (9/20) were located at the left ureter and 11 cases (11/20) at the right .3 cases (3/20) were located at the upper portion of ureter ,6 cases (6/20) at mid portion ,and 11 cases (11/20) at lower portion .The diameter of tumor was 0 .9~2 .1 cm ,vertical violations range was 1 .5~5 .8 cm ;②MSCT manifestation:15 cases (15/20) showed irregular thickened wall and eccentricity lumen stenosis ,11 cases had soft tissue mass in lumen ,5 cases (5/20) showed irregular thickened wall and central lumen stenosis ;③ The enhanced features :20 cases with the tumor were demonstrated apparent enhancement ,tumor in parenchymal phase strengthening was the most obvious .The lesions lumen was showen filling defect and the broken end were irregular ;④Pathological di‐agnosis:20 cases of primary ureteral carcinoma were transitional cell carcinoma .Conclusion MDCT contrast‐enhanced scan and 2D ,3D reconstruction techniques can show the incidence of ureteral cancer site ,extent of disease and the sur‐rounding water violation expansion .MSCT can increase the diagnostic accuracy in early primary ureteral carcinoma ,which has an important value .