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Prognostic Significance of the Proportion of Ductal Component in Ductal Adenocarcinoma of the Prostate

Authors
 Won Sik Jang  ;  Su-Jin Shin  ;  Cheol Yong Yoon  ;  Myung Soo Kim  ;  Dong Hyuk Kang  ;  Yong Jin Kang  ;  Won Sik Jeong  ;  Nam Hoon Cho  ;  Young Deuk Choi 
Citation
 Journal of Urology, Vol.197(4) : 1048-1053, 2017 
Journal Title
 Journal of Urology 
ISSN
 0022-5347 
Issue Date
2017
Keywords
carcinoma ; ductal ; local ; neoplasm recurrence ; prognosis ; prostatectomy ; prostatic neoplasms
Abstract
PURPOSE: In prostate cancer ductal adenocarcinoma is mixed with the usual acinar adenocarcinoma. However, to our knowledge whether the proportion of the ductal component affects oncologic outcomes is currently unknown. We investigated whether the proportion of the ductal component predicts oncologic outcomes in ductal adenocarcinoma. MATERIALS AND METHODS: We retrospectively reviewed clinical data on 3,038 patients with prostate cancer who underwent radical prostatectomy at our institution between 2005 and 2014. We excluded patients who received neoadjuvant or adjuvant treatment. Patients were stratified based on the proportion of the ductal component. We compared the probability of biochemical recurrence between groups and investigated how the proportion of the ductal component influences biochemical recurrence using Kaplan-Meier estimates and Cox regression models, respectively. RESULTS: Of 2,648 patients 101 (3.8%) had ductal adenocarcinoma and 2,547 (96.2%) had acinar adenocarcinoma. Freedom from biochemical recurrence in patients with ductal adenocarcinoma was significantly lower than in those with acinar adenocarcinoma (p <0.001). When ductal cases were stratified by the proportion of the ductal component, freedom from biochemical recurrence in the high ductal component group was significantly lower compared to that in the low ductal component group (30% or greater vs less than 30%, p = 0.023). On univariate and multivariate Cox regression analyses, a high ductal component was a significant predictor of biochemical recurrence (p <0.001). CONCLUSIONS: The prognosis for ductal adenocarcinoma can be stratified by the proportion of the ductal component. This marker could potentially be used as a surrogate for poor prognosis or as a determinant for adjuvant therapy.
Full Text
https://www.sciencedirect.com/science/article/pii/S0022534716318870
DOI
10.1016/j.juro.2016.11.104
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Urology (비뇨의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
Yonsei Authors
강동혁(Kang, Dong Hyuk)
강용진(Kang, Yong Jin)
김명수(Kim, Myung Soo)
신수진(Shin, Su Jin)
윤철용(Yoon, Cheol Yong)
장원식(Jang, Won Sik) ORCID logo https://orcid.org/0000-0002-9082-0381
정원식(Jeong, Won Sik)
조남훈(Cho, Nam Hoon) ORCID logo https://orcid.org/0000-0002-0045-6441
최영득(Choi, Young Deuk) ORCID logo https://orcid.org/0000-0002-8545-5797
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/160480
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