文档介绍：肾癌的CT诊断和鉴别诊断
摘要:目的: 探讨螺旋CT在肾癌诊断中的价值。方法: 回顾性分析4例均手术病理证实的肾癌,行螺旋CT多期扫描,分析其表现。结果: CT平扫2例病灶平扫密度稍高于正常肾实质,2例为等密度。增强扫描皮质期2例强化稍低于肾实质,实质期肿瘤强化密度稍有减低,1例病灶增强扫描动脉期病灶轻度强化,延迟期强化程度增加,且病灶内见条状低密度影。结论:螺旋CT多期扫描对肾癌的诊断有重要价值。
关键词:肾脏肿瘤;体层摄影术,X线计算机;诊断
Abstract:Objective: To evaluate spiral CT in the diagnosis of renal cell carcinoma value. Methods: 4 cases were proved by operation and pathology were retrospectively analyzed for renal cell carcinoma, spiral CT scan, the analysis of its performance. Results: CT scan in 2 cases on plain CT density was higher than that in the normal renal parenchyma, 2 cases of isodense. Enhanced scan in cortical phase in 2 cases enhanced slightly below the renal parenchyma, parenchymal tumor enhancement density slightly lower, 1 cases had mild enhancement in arterial phase enhanced scanning lesions, delay enhancement degree increases, and the lesion showed strip low density. Conclusion: a significant diagnostic value of spiral CT scan in renal cell carcinoma.
keyword:kidney neoplasms; tomography, X-puted; diagnosis
肾癌是泌尿系统最常见的恶性肿瘤,占原发性肾恶性肿瘤的85%~95%,以前其影像学检查以IVP和B超为主,但二者所提供的信息量少,因而价值有限,CT的应用使肾癌诊断的检出率和确诊率明显提高。现在CT检查已成为肾癌诊断或术前分期的主要方法之一。现回顾性分析4例经手术和病理证实的肾癌的CT表现,以进一步提高对肾癌的CT影像诊断。
1. 资料与方法
一般资料收集在2010年5月至2012年3月临床工作期间的4例肾癌,均经手术和病理证实。其中男2例,女2例。年龄在41~69岁,平均年龄54岁。3例均有腰痛、腰部不适,3例有血尿;1例仅有腰部不适症状。
仪器与方法使用美国GE Hispeed CT机,采用层厚和层距5mm行肾脏和肿块连续扫描,其中3例行CT平扫+增强扫描,1例仅行