Predictors of prostate bed nodule on MRI in patients with rising PSA after radical prostatectomy.

2019 ◽  
Vol 37 (7_suppl) ◽  
pp. 122-122
Author(s):  
Nicola Joseph Nasser ◽  
Victoria Chernyak ◽  
Shalom Kalnicki ◽  
Jonathan Klein

122 Background: Radical prostatectomy (RP) is a common treatment modality for localized prostate cancer. Biochemical failure after RP is usually evaluated with whole body imaging to rule out metastatic disease and pelvic MRI to detect local recurrence in the prostate bed. We analyzed disease characteristics and demographic data of patients with rising PSA after RP to determine correlation with MRI-detected cancer recurrence. Methods: Using Clinical Looking Glass, an institutional data registry query tool, we identified all MRI scans performed at our institution between January 2013 and January 2018 to evaluate for the presence of prostate cancer after RP due to rising prostate specific antigen (PSA) levels. Using Chi-square testing, we analyzed PSA levels, pathologic disease characteristics, time from surgery to biochemical failure, and patient demographic characteristics as predictors of local recurrence detected by pelvic MRI. Results: We identified 64 patients who underwent MRI for rising PSA and had complete clinical and pathological data available. A prostate bed nodule compatible with local recurrence was found in 17 patients (27%). Thirty-six patients (56%) had no evidence of tumor in the prostate bed or pelvis. Eleven patients (17%) had a suspicious lesion which could represent scarring, retained seminal vesicle or recurrent cancer. Patient race was associated with likelihood of detecting a prostate nodule on MRI (p = 0.04) with African-American patients having 82% lower chance of MRI-detected tumor recurrence compared with White patients (p = 0.045). No other characteristic was significantly associated with MRI-detected recurrence including prostate cancer risk group, Gleason score, extra-capsular extension, positive surgical margin, seminal vesicle involvement, perineural invasion, lymphovascular invasion, and PSA level before MRI. Conclusions: African-American patients with biochemical failure after RP are less likely to have MRI-detectable recurrence in the prostate bed compared with white patients. This data may support a higher propensity toward microscopic metastatic disease at the time of biochemical failure in this population.

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Nicola J. Nasser ◽  
Victoria Chernyak ◽  
Viswanathan Shankar ◽  
Madhur Garg ◽  
William Bodner ◽  
...  

Introduction: Radical prostatectomy (RP) is a standard treatment modality for localized prostate cancer. Biochemical failure after RP is usually evaluated with whole body imaging to exclude distant metastatic disease, and pelvic magnetic resonance imaging (MRI) to detect local recurrence in the prostatectomy bed. The goal of this study is to correlate disease characteristics and demographic data in patients with rising prostate-specific antigen (PSA) after RP to determine association with MRI-detected cancer recurrence. Methods: Sixty-four patients who underwent pelvic MRI for rising PSA after RP and had complete clinical and pathological data available were included. Using Chi-squared testing, we analyzed PSA levels, pathological disease characteristics (prostate cancer risk group, Gleason score, extracapsular extension, positive surgical margin, seminal vesicle involvement, perineural invasion, lymphovascular invasion, and PSA level before MRI), time from surgery to biochemical failure, and patient demographic characteristics as potential predictors of MR-detected local recurrence. Results: Definite MRI-detected local recurrence was observed in 17/64 patients (27%). Eleven (17%) patients had a suspicious lesion with the differential of scarring, retained seminal vesicle, or recurrent cancer. Thirty-six (56%) patients had no evidence of tumor in the prostate bed or pelvis on MRI. Patient race was associated with likelihood of detecting a prostate nodule on MRI (p=0.04), with African-American patients having 82% lower odds of MRI-detected tumor recurrence compared with White patients (p=0.045). No other tumor or patient characteristic was significantly associated with MRI-detected recurrence. Conclusions: African-American patients with biochemical failure after RP are less likely to have MRI-detectable recurrence in the prostate bed compared with White patients.


2018 ◽  
Vol 36 (6_suppl) ◽  
pp. 41-41
Author(s):  
Daniel Canter ◽  
Julia E. Reid ◽  
Maria Latsis ◽  
Margaret Variano ◽  
Shams Halat ◽  
...  

41 Background: Prostate cancer (PC) is the most common male malignancy. Prior data has suggested that African American (AA) men present with more aggressive disease relative to men of other ancestries. Here, we examined the effects of ancestry on clinical and molecular measures of disease aggressiveness as well as pathologic outcomes in men treated with radical prostatectomy (RP) for localized PC. Methods: Data was collected from patients undergoing RP at the Ochsner Clinic from 2006 to 2011. Formalin−fixed paraffin embedded biopsy tissue was analyzed for the RNA expression of 31 cell cycle progression (CCP) genes and 15 housekeeping genes to obtain a CCP score (a validated molecular measure of PC aggressiveness). Cancer of the Prostate Risk Assessment (CAPRA) scores were also determined based on clinicopathologic features at the time of diagnosis. Clinical (Gleason score, tumor stage, CAPRA score) and molecular (CCP score) measures of disease aggressiveness were compared based on ancestry (AA versus non−AA). Cox proportional hazards models were used to test association of ancestry to biochemical recurrence (BCR) and progression to metastatic disease. Fisher’s exact and Wilcoxon rank sum tests were used to compare ancestries. Results: A total of 384 patients were treated with RP, including 133 (34.8%) AA men. At the time of diagnosis, the median age was 62 years (interquartile range (IQR) 56, 66) and PSA was 5.4 ng/mL (IQR 4.2, 7.6). When compared by ancestry, there were no significant differences in biopsy Gleason score (p = 0.26), clinical stage (p = 0.27), CAPRA score (p = 0.58), or CCP score (p = 0.87). In addition, there was no significant difference in the risk of BCR between ancestries (p = 0.55). Only non−AA men progressed to metastatic disease within the ten years of follow−up. Conclusions: Contrary to prior reports, these data appears to indicate that men of AA ancestry do not necessarily present with or develop a more biologically aggressive form of PC. Although these data represents only one institution’s experience, it contains a highly robust AA population compared to prior reports. Further research is required to account for the discrepancy in the previously published literature.


2007 ◽  
Vol 177 (4S) ◽  
pp. 222-222
Author(s):  
Mireia Musquera ◽  
Maria J. Ribal ◽  
Yolanda Arce ◽  
Humberto Villavicencio ◽  
Fernando Algaba ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-23 ◽  
Author(s):  
Flavio Barchetti ◽  
Valeria Panebianco

The clinical suspicion of local recurrence of prostate cancer (PCa) after radical prostatectomy (RP) and after radiation therapy (RT) is based on the onset of biochemical failure. The aim of this paper was to review the current role of multiparametric-MRI (mp-MRI) in the detection of locoregional recurrence. A systematic literature search using the Medline and Cochrane Library databases was performed from January 1995 up to November 2013. Bibliographies of retrieved and review articles were also examined. Only those articles reporting complete data with clinical relevance for the present review were selected. This review article is divided into two major parts: the first one considers the role of mp-MRI in the detection of PCa local recurrence after RP; the second part provides an insight about the impact of mp-MRI in the depiction of locoregional recurrence after RT (interstitial or external beam). Published data indicate an emerging role for mp-MRI in the detection and localization of locally recurrent PCa both after RP and RT which represents an information of paramount importance to perform focal salvage treatments.


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