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首页> 外文期刊>Journal of computer assisted tomography >Significance of peritumoral vascularity on CT in evaluation of renal cortical tumor.
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Significance of peritumoral vascularity on CT in evaluation of renal cortical tumor.

机译：肿瘤周围血管造影在CT评估肾皮质肿瘤中的意义。

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摘要

PURPOSE: To investigate whether the presence and degree of peritumoral vascularity may provide any diagnostic information regarding the histological subtypes of renal tumors. MATERIALS AND METHODS: Between January 2004 and March 2006, 214 patients (age, 19-94 years; 120 men, 94 women) with renal masses underwent total or partial nephrectomy and preoperative renal protocol computed tomography. Two radiologists retrospectively reviewed the computed tomographic exams in an independent and blinded fashion. The radiologists evaluated the presence of peritumoral vascularity and measured the largest vessel caliber. Fisher exact tests, multivariate logistic regression, and Wilcoxon rank-sum tests were performed for statistical analysis. RESULTS: Of 219 renal tumors (median size, 3.5 cm; range, 0.9-20.0 cm) included in this study, 112 (51%) were clear cell renal cell carcinoma, 34 (16%) were papillary, 32 (15%) were chromophobe, 17 (8%) were oncocytomas, 6 (3%) were lipid-poor angiomyolipomas, and 18 (8%) were other or unclassified renal tumors. The presence of peritumoral vascularity was significantly associated with tumor size within each subtype. For both readers, peritumoral vascularity was more frequently identified in clear cell carcinomas than in papillary renal carcinomas of similar size (P = 0.019 and 0.008, respectively). For one of the readers, chromophobe carcinomas were also significantly less frequently associated with peritumoral vascularity than clear cell carcinomas of similar size (P = 0.014). CONCLUSIONS: Clear cell carcinomas demonstrate peritumoral vascularity significantly more frequently than other malignant renal tumors of similar size. The presence of peritumoral vascularity may provide additional diagnostic information and improve therapeutic planning in some cases.
机译：目的：探讨肿瘤周围血管的存在和程度是否可以提供有关肾脏肿瘤组织学亚型的任何诊断信息。材料与方法：2004年1月至2006年3月，对214例（占年龄19-94岁; 120例男性，94例女性）肾肿块的患者行全肾或部分肾切除术，并术前进行了肾脏X线计算机断层扫描。两名放射科医生以独立且不知情的方式回顾性地检查了计算机断层摄影检查。放射科医生评估了肿瘤周围血管的存在，并测量了最大的血管口径。统计分析采用Fisher精确检验，多元逻辑回归和Wilcoxon秩和检验。结果：本研究纳入的219例肾脏肿瘤（中位大小为3.5厘米;范围为0.9-20.0厘米）中，透明细胞肾细胞癌为112例（51％），乳头状为34例（16％），32例为15％分别是发色团，17（8％）是细胞瘤，6（3％）是脂质不足的血管平滑肌瘤，还有18（8％）是其他或未分类的肾肿瘤。肿瘤周围血管的存在与每种亚型内的肿瘤大小显着相关。对于这两个读者，与相似大小的乳头状肾癌相比，在透明细胞癌中更经常发现肿瘤周围血管（分别为P = 0.019和0.008）。对于其中一位读者来说，发色癌与肿瘤周围血管相关的频率也明显低于类似大小的透明细胞癌（P = 0.014）。结论：透明细胞癌比其他类似大小的恶性肾肿瘤更频繁地显示出肿瘤周围血管。在某些情况下，肿瘤周围血管的存在可能会提供其他诊断信息并改善治疗计划。

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