PMID- 25799553 OWN - NLM STAT- MEDLINE DCOM- 20160209 LR - 20181113 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 10 IP - 3 DP - 2015 TI - A comparison of radiologic tumor volume and pathologic tumor volume in renal cell carcinoma (RCC). PG - e0122019 LID - 10.1371/journal.pone.0122019 [doi] LID - e0122019 AB - OBJECTIVE: To investigate the difference between preoperative radiologic tumor volume (RTV) and postoperative pathologic tumor volume (PTV) in patients who received nephrectomy for renal cell carcinoma (RCC). MATERIALS AND METHODS: We reviewed 482 patients who underwent preoperative computed tomography (CT) within 4 weeks before radical or partial nephrectomy for renal cell carcinoma. RTV measured by a three dimensional rendering program was compared with PTV (pi/6 x height x length x width) measured in surgical specimen according to pathologic tumor size and histologic subtype. Correlation of the inter-quartile range (IQR) of the RTV and Fuhrman nuclear grade was also investigated. RESULTS: There was a significant positive linear correlation between RTV and PTV (p < 0.001, r = 0.911), and the mean RTV and mean PTV were not significantly different (79.0 vs 76.9 cm3, p = 0.393). For pathologic tumor size (PTS) < 4 cm, the mean RTV was larger than the mean PTV (10.9 vs 7.1 cm3, p < 0.001). For a PTS of 4-7 cm, the mean RTV was larger than the mean PTV (56.0 vs 44.7 cm3, p < 0.001). However, for a PTS >/= 7 cm, there was no statistical difference between RTV and PTV (p > 0.05). Among patients with clear cell RCC, the mean RTV was significantly larger than the mean PTV (p = 0.042), not for non-clear cell group (p = 0.055). As the quartile of the RTV increased, the Fuhrman grade also increased (p < 0.001). CONCLUSIONS: RTV was correlated with PTV and pathologic grade. RTV was larger than the PTV for a tumor size 7 cm or less or in clear cell RCC. RTV may be useful to measure tumor burden preoperatively. FAU - Choi, See Min AU - Choi SM AD - Department of Urology, Gyeongsang National University Hospital, Gyeongsang National University School of medicine, Jinju, Korea. FAU - Choi, Don Kyoung AU - Choi DK AD - Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Kim, Tae Heon AU - Kim TH AD - Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Jeong, Byong Chang AU - Jeong BC AD - Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Seo, Seong Il AU - Seo SI AD - Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Jeon, Seong Soo AU - Jeon SS AD - Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Lee, Hyun Moo AU - Lee HM AD - Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Choi, Han-Yong AU - Choi HY AD - Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Jeon, Hwang Gyun AU - Jeon HG AD - Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150323 PL - United States TA - PLoS One JT - PloS one JID - 101285081 SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Carcinoma, Renal Cell/*diagnostic imaging/*pathology/surgery MH - Child MH - Child, Preschool MH - Female MH - Humans MH - Kidney Neoplasms/*diagnostic imaging/*pathology/surgery MH - Male MH - Middle Aged MH - Neoplasm Grading MH - Neoplasm Staging MH - Nephrectomy MH - Retrospective Studies MH - Risk Factors MH - Tomography, X-Ray Computed MH - Tumor Burden MH - Young Adult PMC - PMC4370411 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2015/03/24 06:00 MHDA- 2016/02/10 06:00 PMCR- 2015/03/23 CRDT- 2015/03/24 06:00 PHST- 2014/11/30 00:00 [received] PHST- 2015/02/09 00:00 [accepted] PHST- 2015/03/24 06:00 [entrez] PHST- 2015/03/24 06:00 [pubmed] PHST- 2016/02/10 06:00 [medline] PHST- 2015/03/23 00:00 [pmc-release] AID - PONE-D-14-53042 [pii] AID - 10.1371/journal.pone.0122019 [doi] PST - epublish SO - PLoS One. 2015 Mar 23;10(3):e0122019. doi: 10.1371/journal.pone.0122019. eCollection 2015.