You have accessJournal of UrologyKidney Cancer: Evaluation & Staging (II)1 Apr 2013736 RCC GRADE PREDICTION USING CONTRASTED COMPUTED TOMOGRAPHY Luck Hee Sung, Choong Hee Noh, Jae Yong Chung, and Ji Hyung Yu Luck Hee SungLuck Hee Sung seoul, Korea, Republic of More articles by this author , Choong Hee NohChoong Hee Noh seoul, Korea, Republic of More articles by this author , Jae Yong ChungJae Yong Chung seoul, Korea, Republic of More articles by this author , and Ji Hyung YuJi Hyung Yu seoul, Korea, Republic of More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2013.02.299AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Nuclear grade (Fuhrman) is an independent prognostic factor in renal cell carcinoma (RCC). Contrasted CT is one of the most important tools in the diagnosis and staging of (RCC). The amount of enhancement on contrasted CT to predict high grade tumours can be useful. Our objective was to identify if tumour enhancement was associated to RCC grade. METHODS Medical charts of all patients with histologic diagnosis of RCC and a preoperative contrasted CT on a patient archive communication system (PACS) were analyzed. All CT were performed on a 64-slice Siemens CT. Variables analyzed during contrast and non-contrast CT were Hounsfield units (HU) of renal parenchyma and tumour. During contrast CT special attention was payed to both the points of highest enhancement and to average enhancement of the whole tumour at the point of greatest necrosis (WTH), if applicable. Pathological variables as well as size and stage were analyzed. Student's T test was used for statistical analysis, using commercially available software. RESULTS 30 patients were included. Average tumour enhancement was 86.67 and 56 HU for low-grade (Fuhrman 1 and 2) and high-grade (Fuhrman 3 and 4) tumours, respectively (p=0.022). When considering the average enhancement WTH, low- and high-grade tumours enhanced 89.2 and 51.3 HU (p=0.002). High-grade tumours were also larger than low-grade tumours (89.2 cm vs. 51.3 cm, p=0.009). CONCLUSIONS High-grade RCC was associated to lower enhancement on contrast CT. Lower average enhancement may correlate to the degree of necrosis and could be a useful tool in prediction of higher nuclear grade and worse prognosis. Larger prospective studies are necessary to confirm this association. © 2013 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 189Issue 4SApril 2013Page: e303 Advertisement Copyright & Permissions© 2013 by American Urological Association Education and Research, Inc.MetricsAuthor Information Luck Hee Sung seoul, Korea, Republic of More articles by this author Choong Hee Noh seoul, Korea, Republic of More articles by this author Jae Yong Chung seoul, Korea, Republic of More articles by this author Ji Hyung Yu seoul, Korea, Republic of More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...