摘要
目的 :探讨腹膜后肿瘤累及邻近脏器的影像学表现 ,为手术治疗提供依据。材料和方法 :总结分析 46例邻近脏器受累的腹膜后肿瘤患者的术前CT、MRI资料。结果 :恶性肿瘤患者 32例 ,良性 1 4例 ,肿瘤邻近脏器受累与肿瘤的良恶性无关。肾脏是最常受侵的脏器。下列征象提示可能需将受累肾脏切除 ;肿瘤生长穿通Gerota筋膜 ,与肾脏连接面大于肾周长的 1 / 3以上 ;肿瘤压迫造成肾和肾蒂移位 ;肿瘤包裹肾门结构 ;肿瘤侵及输尿管 ,导致肾盂严重积水等。肿瘤累及腔静脉多于动脉。常规CT和MRI增强检查 ,可准确显示脏器受累的征象。结论 :肾脏和腔静脉最易受到腹膜后肿瘤的侵及 ;规范CT、MRI检查能够清楚显示脏器受累的征象。
Purpose: To investigate the manifestation of imaging of visceral involvement in primary retroperitoneal neoplasms (PRN) and its′ clinical information about type of operation and proper approach. Materials and Methods: 46 patients of PRN with involvement of surrounding viscera, CT and MRI findings of pre operation were analyzed retrospectively. Results: Of the 46 patients, 32 cases were malignant PRN, 14 cases were benign PRN, and there was no significant difference about visceral involvement between the malignant and benign PRN. Bilateral kidneys were most often involved. The following findings can suggest the necessary to remove renal as well as neoplasms resection: the tumor surrounded kidney more than 1/3 of renal circle and penetrated Gerona fascia resulting in the margin opacity; the kidney and renal vessels were remarkable displaced due to growth of tumor: the tumor invaded renal vessels; tumor expressed against ureters resulting in severe expansion of pelvis. IVC involvement was more often encountered than artery. The imaging findings of visceral involvement could be identified by routine CT and MRI scans with vein enhancement. Conclusion: The kidney and IVC are more often and easily invaded by PRN. Pre operation routine CT and MRI scans with vein enhancement can identify the findings clearly.
出处
《中国医学影像学杂志》
CSCD
2001年第6期406-408,共3页
Chinese Journal of Medical Imaging
关键词
腹膜后肿瘤
CT
NMR
成像
primary retroperitoneal neoplasms
CT
MRI
