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https://www.readbyqxmd.com/read/28834167/feasibility-and-safety-of-focal-irreversible-electroporation-as-salvage-treatment-for-localized-radio-recurrent-prostate-cancer
#1
Matthijs J Scheltema, Willemien van den Bos, Amila R Siriwardana, Anton M F Kalsbeek, James E Thompson, Francis Ting, Maret Böhm, Anne-Maree Haynes, Ron Shnier, Warick Delprado, Phillip D Stricker
OBJECTIVES: To evaluate the feasibility, safety, early quality of life (QoL) and oncological outcomes of salvage focal irreversible electroporation (IRE) for radio-recurrent prostate cancer (PCa). PATIENTS AND METHODS: Patients with localized, radio-recurrent PCa without evidence of metastatic or nodal disease were offered focal IRE following the consensus guidelines. Patients with a minimum follow-up of 6 months were eligible for analysis. Adverse events were monitored using the NCI Common Terminology Criteria for Adverse Events (CTCAE version 4...
August 21, 2017: BJU International
https://www.readbyqxmd.com/read/28833389/morphologic-spectrum-of-renal-cell-carcinoma-unclassified-an-analysis-of-136-cases
#2
Carmen M Perrino, David J Grignon, Sean R Williamson, Muhammad T Idrees, John N Eble, Liang Cheng
AIMS: Renal cell carcinoma, unclassified (RCCU) is a category that includes a morphologically and biologically heterogeneous group of tumors that are unable to be diagnosed as other well-defined entities. We aim to describe the morphologic findings of tumors within this category and to determine the most frequent morphologic features leading to classification difficulty. METHODS AND RESULTS: One hundred and thirty-six cases of RCCU were examined. Patients ranged in age from 23 to 87 years...
August 18, 2017: Histopathology
https://www.readbyqxmd.com/read/28800310/nephroblastoma-overexpressed-gene-expression-and-its-prognostic-implications-of-clinical-outcomes-in-renal-cell-carcinoma-patients
#3
Hongbin Shi, Jianping Yu, Jie Li
BACKGROUND: The nephroblastoma overexpressed gene (NOV) expressions in tissues and organs has become abnormal during tumorigenesis and progression. This study intended to investigate the correlation between clinical outcomes and NOV expression in renal cell carcinoma (RCC) patients. METHODS: Fifty RCC patients who attended the hospital from January 2013 to January 2015 were enrolled in this study. NOV expression in cancerous tissues and adjacent non-cancerous renal tissues of RCC patients were detected by immunohistochemistry (IHC)...
July 31, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28796935/focal-irreversible-electroporation-as-primary-treatment-for-localized-prostate-cancer
#4
Willemien van den Bos, Matthijs J Scheltema, Amila R Siriwardana, Anton M F Kalsbeek, James E Thompson, Francis Ting, Maret Böhm, Anne-Maree Haynes, Ron Shnier, Warick Delprado, Phillip D Stricker
OBJECTIVES: To determine the safety, quality of life (QoL) and short-term oncological outcomes of primary focal IRE for the treatment of localized prostate cancer. To identify potential risk factors for oncological failure. PATIENTS AND METHODS: Patients that met both the consensus guidelines on patient criteria and selection methods for primary focal therapy were eligible for analysis. Focal IRE was performed for organ-confined clinically significant PCa, being high-volume Gleason sum score 6 (ISUP grade 1) or any Gleason sum score 7 (ISUP grade 2-3)...
August 10, 2017: BJU International
https://www.readbyqxmd.com/read/28768909/addressing-metabolic-heterogeneity-in-clear-cell-renal-cell-carcinoma-with-quantitative-dixon-mri
#5
Yue Zhang, Durga Udayakumar, Ling Cai, Zeping Hu, Payal Kapur, Eun-Young Kho, Andrea Pavía-Jiménez, Michael Fulkerson, Alberto Diaz de Leon, Qing Yuan, Ivan E Dimitrov, Takeshi Yokoo, Jin Ye, Matthew A Mitsche, Hyeonwoo Kim, Jeffrey G McDonald, Yin Xi, Ananth J Madhuranthakam, Durgesh K Dwivedi, Robert E Lenkinski, Jeffrey A Cadeddu, Vitaly Margulis, James Brugarolas, Ralph J DeBerardinis, Ivan Pedrosa
BACKGROUND: Dysregulated lipid and glucose metabolism in clear cell renal cell carcinoma (ccRCC) has been implicated in disease progression, and whole tumor tissue-based assessment of these changes is challenged by the tumor heterogeneity. We studied a noninvasive quantitative MRI method that predicts metabolic alterations in the whole tumor. METHODS: We applied Dixon-based MRI for in vivo quantification of lipid accumulation (fat fraction [FF]) in targeted regions of interest of 45 primary ccRCCs and correlated these MRI measures to mass spectrometry-based lipidomics and metabolomics of anatomically colocalized tissue samples isolated from the same tumor after surgery...
August 3, 2017: JCI Insight
https://www.readbyqxmd.com/read/28765068/5-trna-halves-are-dysregulated-in-clear-cell-renal-cell-carcinoma
#6
Chenming Zhao, Yuri Tolkach, Doris Schmidt, Glen Kristiansen, Stefan C Müller, Jörg Ellinger
PURPOSE: tRNA fragments are dysregulated in various malignancies. Our study was designed to determine the expression of four 5'-tRNA-halves in tissue and serum of clear cell renal cell carcinoma (ccRCC) patients. MATERIALS AND METHODS: Tissue and serum samples of patients with ccRCC and non-malignant disease were collected prospectively in our Biobank. We isolated total RNA from 95 ccRCC and 50 normal renal tissues as well as serum RNA from 27 patients with ccRCC and 13 with non-malignant urological diseases...
July 29, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28736249/identifying-intermediate-risk-candidates-for-active-surveillance-of-prostate-cancer
#7
Richard Savdie, Jonathan Aning, Alan I So, Peter C Black, Martin E Gleave, S Larry Goldenberg
PURPOSE: Although already established for very-low and low-risk (LR) prostate cancer (PCa), controversy remains around offering active surveillance (AS) to men with intermediate-risk (IR) PCa. As IR represents a broad spectrum of disease biology, there is a critical need to define eligibility criteria that will enable both patient and physician to accept AS as the best balance of competing risks. In this study, we aimed to identify predictors of progression to enable optimal patient selection...
July 20, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28722802/pathology-imagebase-a-reference-image-database-for-standardization-of-pathology
#8
Lars Egevad, John Cheville, Andrew J Evans, Jonas Hörnblad, James G Kench, Glen Kristiansen, Katia R M Leite, Cristina Magi-Galluzzi, Chin-Chen Pan, Hemamali Samaratunga, John R Srigley, Lawrence True, Ming Zhou, Mark Clements, Brett Delahunt
AIMS: Despite efforts to standardize histopathology practice through the development of guidelines, the interpretation of morphology is still hampered by subjectivity. We here describe Pathology Imagebase, a novel mechanism for establishing an international standard for the interpretation of pathology specimens. METHODS AND RESULTS: The International Society of Urological Pathology (ISUP) established a reference image database through the input of experts in the field...
July 19, 2017: Histopathology
https://www.readbyqxmd.com/read/28718911/clear-cell-renal-cell-carcinoma-validation-of-who-isup-grading
#9
Julien Dagher, Brett Delahunt, Nathalie Rioux-Leclercq, Lars Egevad, John R Srigley, Geoffrey Coughlin, Nigel Dunglinson, Troy Gianduzzo, Boon Kua, Greg Malone, Ben Martin, John Preston, Morgan Pokorny, Simon Wood, John Yaxley, Hemamali Samaratunga
AIM: In 2012, the International Society of Urological Pathology (ISUP) introduced a novel grading system for clear cell and papillary renal cell carcinoma (RCC) based upon increasing nucleolar prominence in grades 1 to 3, with the presence of extreme nuclear pleomorphism and/or tumour giant cells and/or sarcomatoid and/or rhabdoid differentiation as criteria for grade 4. This system is now incorporated in the latest World Health Organization renal tumour classification, being designated WHO/ISUP grading...
July 18, 2017: Histopathology
https://www.readbyqxmd.com/read/28669641/prognostic-significance-of-extensive-necrosis-in-renal-cell-carcinoma
#10
Jennifer Collins, Jonathan I Epstein
Few studies using the current classification of renal cell carcinoma (RCC) have looked at a large number of cases with near total necrosis. We identified 21 cases of resections of RCC with >90% necrosis from the archives of Johns Hopkins Hospital between 2000-2015. Patients' mean age was 59yrs. (43-77) with 16 (76%) males. 12 (57%) cases were papillary RCC, 4 (19%) clear cell papillary RCC, 4 (19%) clear cell RCC, 1 (5%) unclassified with sarcomatoid differentiation. International Society of Urological Pathology (ISUP) nucleolar grade was grade 1 (9 cases) or grade 2 (9 cases)...
June 29, 2017: Human Pathology
https://www.readbyqxmd.com/read/28669081/distribution-of-vascular-patterns-in-different-subtypes-of-renal-cell-carcinoma-a-morphometric-study-in-two-distinct-types-of-blood-vessels
#11
Amparo Ruiz-Saurí, V García-Bustos, E Granero, S Cuesta, M A Sales, V Marcos, A Llombart-Bosch
To analyze the presence of mature and immature vessels as a prognostic factor in patients with renal cell carcinoma and propose a classification of renal cancer tumor blood vessels according to morphometric parameters. Tissue samples were obtained from 121 renal cell carcinoma patients who underwent radical nephrectomy. Staining with CD31 and CD34 was used to differentiate between immature (CD31+) and mature (CD34+) blood vessels. We quantified the microvascular density, microvascular area and different morphometric parameters: maximum diameter, minimum diameter, major axis, minor axis, perimeter, radius ratio and roundness...
July 1, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28656700/chromosomal-abnormalities-of-high-grade-mucinous-tubular-and-spindle-cell-carcinoma-of-the-kidney
#12
Evita T Sadimin, Ying-Bei Chen, Lu Wang, Pedram Argani, Jonathan I Epstein
INTRODUCTION: Mucinous tubular and spindle cell carcinoma (MTSC) of the kidney is a distinct entity characterized by bland tightly packed elongated tubules and spindle cells with low nucleolar grade in a basophilic mucinous stroma. Several case studies have reported MTSC with high grade features and have brought into question whether they represented MTSC or a variant of papillary renal cell carcinoma. MATERIALS AND METHODS: We searched our pathology database and identified seven cases: six MTSC with high International Society of Urological Pathology (ISUP) nucleolar grade, and one MTSC with overall low nucleolar grade but extensive necrosis...
June 28, 2017: Histopathology
https://www.readbyqxmd.com/read/28554811/the-impact-of-prostate-cancer-zonal-origin-on-pathological-parameters-at-radical-prostatectomy-and-subsequent-biochemical-failure
#13
Patrick E Teloken, Jian Li, Clifton G Woods, Ronald J Cohen
PURPOSE: We assessed the impact of prostatic zone tumor origin on pathological prognostic features and subsequent biochemical outcomes after radical prostatectomy. MATERIALS AND METHODS: A total of 7,051 patients who underwent radical prostatectomy between September 1998 and December 2016 in Western Australia were divided into a high grade group, defined as Gleason sum 4 + 3, 8 and 9 or greater and ISUP (International Society of Urological Pathology) groups 3, 4 and 5, and a low grade group, defined as Gleason sum 6 or less and 3 + 4, and ISUP groups 1 and 2...
May 26, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28498816/the-prostate-health-index-phi-predicts-oncological-outcome-and-biochemical-recurrence-after-radical-prostatectomy-analysis-in-437-patients
#14
Andreas Maxeiner, Ergin Kilic, Julia Matalon, Frank Friedersdorff, Kurt Miller, Klaus Jung, Carsten Stephan, Jonas Busch
The purpose of this study was to investigate the Prostate-Health-Index (PHI) for pathological outcome prediction following radical prostatectomy and also for biochemical recurrence prediction in comparison to established parameters such as Gleason-score, pathological tumor stage, resection status (R0/1) and prostate-specific antigen (PSA).Out of a cohort of 460 cases with preoperative PHI-measurements (World Health Organization calibration: Beckman Coulter Access-2-Immunoassay) between 2001 and 2014, 437 patients with complete follow up data were included...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28470873/bmp9-induces-osteogenesis-and-adipogenesis-in-the-immortalized-human-cranial-suture-progenitors-from-the-patent-sutures-of-craniosynostosis-patients
#15
Dongzhe Song, Fugui Zhang, Russell R Reid, Jixing Ye, Qiang Wei, Junyi Liao, Yulong Zou, Jiaming Fan, Chao Ma, Xue Hu, Xiangyang Qu, Liqun Chen, Li Li, Yichun Yu, Xinyi Yu, Zhicai Zhang, Chen Zhao, Zongyue Zeng, Ruyi Zhang, Shujuan Yan, Tingting Wu, Xingye Wu, Yi Shu, Jiayan Lei, Yasha Li, Wenwen Zhang, Jia Wang, Michael J Lee, Jennifer Moriatis Wolf, Dingming Huang, Tong-Chuan He
The cranial suture complex is a heterogeneous tissue consisting of osteogenic progenitor cells and mesenchymal stem cells (MSCs) from bone marrow and suture mesenchyme. The fusion of cranial sutures is a highly coordinated and tightly regulated process during development. Craniosynostosis is a congenital malformation caused by premature fusion of cranial sutures. While the progenitor cells derived from the cranial suture complex should prove valuable for studying the molecular mechanisms underlying suture development and pathogenic premature suture fusion, primary human cranial suture progenitors (SuPs) have limited life span and gradually lose osteoblastic ability over passages...
May 4, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28422303/smoking-increased-the-risk-of-prostate-cancer-with-grade-group%C3%A2-%C3%A2-%C3%A2-4-and-intraductal-carcinoma-in-a-prospective-biopsy-cohort
#16
Bo Tang, Cheng-Tao Han, Hua-Lei Gan, Gui-Ming Zhang, Cui-Zhu Zhang, Wei-Yi Yang, Ying Shen, Yao Zhu, Ding-Wei Ye
OBJECTIVE: To investigate the association between smoking and different prostate cancer (PCa) pathological subtypes incidence in Chinese men. PATIENTS AND METHODS: We prospectively included 1795 patients who underwent prostate biopsies in one tertiary center between March 2013 and April 2016. Clinical data and biopsy outcomes were collected. Logistic regression was used to evaluate the association between cigarette smoking and PCa incidence. RESULTS: A total of 737 men, 480 men and 58 men were diagnosed with PCa, high-grade PCa (HGPCa, grade group ≥ 4 as accepted by the 2014 ISUP) and intraductal carcinoma of the prostate (IDC-P), respectively...
June 2017: Prostate
https://www.readbyqxmd.com/read/28416108/tumor-necrosis-adds-prognostically-significant-information-to-grade-in-clear-cell-renal-cell-carcinoma-a-study-of-842-consecutive-cases-from-a-single-institution-khor-ly-dhakal-hp-jia-x-reynolds-jp-mckenney-jk-rini-bi-magi-galluzzi-c-przybycin-cg-am-j-surg
#17
Oleksandr N Kryvenko
Tumor necrosis has been shown to be an independent predictor of adverse outcome in renal cell carcinoma. A modification of the International Society of Urological Pathology (ISUP) grading system for renal cell carcinomas has recently been proposed, which incorporates the presence of tumor necrosis into grade. The investigators proposing this system found that necrosis added significant prognostic information to ISUP grade. We attempted to describe our experience with the effect of tumor necrosis in relationship to nuclear grade by reviewing the slides from a large consecutive series of localized clear cell renal cell carcinomas from our institution and obtaining long-term clinical follow-up information (overall survival)...
June 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28389514/histopathology-of-prostate-cancer
#18
Peter A Humphrey
This review focuses on histopathological aspects of carcinoma of the prostate. A tissue diagnosis of adenocarcinoma is often essential for establishing a diagnosis of prostate cancer, and the foundation for a tissue diagnosis is currently light microscopic examination of hematoxylin and eosin (H&E)-stained tissue sections. Markers detected by immunohistochemistry on tissue sections can support a diagnosis of adenocarcinoma that is primary in the prostate gland or metastatic. Histological variants of carcinoma of the prostate are important for diagnostic recognition of cancer or as clinicopathologic entities that have prognostic and/or therapeutic significance...
April 7, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28373133/prospective-evaluation-of-pi-rads%C3%A2-version-2-using-the-international-society-of-urological-pathology-prostate-cancer-grade-group-system
#19
Sherif Mehralivand, Sandra Bednarova, Joanna H Shih, Francesca V Mertan, Sonia Gaur, Maria J Merino, Bradford J Wood, Peter A Pinto, Peter L Choyke, Baris Turkbey
PURPOSE: The PI-RADS™ (Prostate Imaging Reporting and Data System), version 2 scoring system, introduced in 2015, is based on expert consensus. In the same time frame ISUP (International Society of Urological Pathology) introduced a new pathological scoring system for prostate cancer. Our goal was to prospectively evaluate the cancer detection rates for each PI-RADS, version 2 category and compare them to ISUP group scores in patients undergoing systematic biopsy and magnetic resonance imaging-transrectal ultrasound fusion guided biopsy...
September 2017: Journal of Urology
https://www.readbyqxmd.com/read/28371244/predictive-value-of-the-2014-international-society-of-urological-pathology-grading-system-for-prostate-cancer-in-radical-prostatectomy-patients-with-long-term-follow-up
#20
Judith Grogan, Ruta Gupta, Kate L Mahon, Phillip D Stricker, Anne-Maree Haynes, Warick Delprado, Jennifer Turner, Lisa G Horvath, James G Kench
OBJECTIVE: To assess the relationship between the ISUP 2014 grading system, biochemical relapse (BCR) and clinical relapse (CLR) following radical prostatectomy, to determine whether the 2014 ISUP grading system is a better predictor of survival compared to the previous Gleason scoring systems, and to investigate whether incorporation of the tertiary pattern/grade into the ISUP scoring system significantly improves its efficacy. PATIENTS AND METHODS: 635 radical prostatectomy cases (1991-1999) were identified from a database at a single institution...
March 28, 2017: BJU International
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