The main CT findings and its cut-off value to differentiate multilocular cystic renal cell carcinoma
10.3760/cma.j.issn.1673-4904.2011.11.010
- VernacularTitle:鉴别多房囊性肾细胞癌的主要CT征象及临界值
- Author:
Shuo LIU
;
Yongji WU
;
Fengqi LI
;
Wenlong MIAO
;
Guang SUN
- Publication Type:Journal Article
- Keywords:
Kidney neoplasms;
ROC curve;
Tomography,X-ray computed;
WHO 2004criteria;
Thickness of cystic wall and/or septum
- From:
Chinese Journal of Postgraduates of Medicine
2011;34(11):27-29
- CountryChina
- Language:Chinese
-
Abstract:
Objective To determine the main CT features and the key points of differential diagnosis of multilocular cystic renal cell carcinoma (MCRCC) classified according to 2004 WHO pathological diagnostic criteria. Methods According to the criteria, 40 patients were divided into two groups: MCRCC group and other subtypes of cystic renal cell carcinoma (CRCC). The CT findings were evaluated and compared between two groups for cystic content, wall, septum, nodularity, calcification and enhancement. ROC curve was used to determine the cut-off value of the possible CT feature which could distinguish MCRCC from other subtypes of CRCC. Results Seventeen cases of MCRCC group and 23 cases of CRCC group were included in this study according to the diagnostic criteria. MCRCC appeared as a well defined multilocular cystic mass with thin wall and sepia and no expansile solid nodules. Thickness of cystic wall and/or septum is was main CT findings to distinguish MCRCC from other subtypes of CRCC (P ＜ 0.01 ). The cut-off value of the thickness was 6 mm and its sensibility, specificity was 89% ,75% respectively. Conclusion Cystic wall and/or septum with a thickness of less than 6 mm are the main CT findings to dis tinguish MCRCC from other subtypes of CRCC.
