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Neringa Bielskienė, Vytautas Augustinavičius, Dileta Valančienė, Algirdas Edvardas Tamošiūnas, Feliksas Jankevičius
Introduction: Bosniak introduced a classification of renal cysts based on imaging characteristics. Cystic renal changes are categorized determining their risk of malignancy and further management. However, defining the malignancy of category III lesions still remains a challenge and our aim was to evaluate the features of malignancy in computed tomography within this category. Material and methods: The Vilnius University Hospital Santariškių Klinikos information system was retrospectively searched for computed tomography examinations in which Bosniak category III lesions were reported...
2018: Central European Journal of Urology
François-Xavier Nouhaud, Jean-Christophe Bernhard, Pierre Bigot, Zine-Eddine Khene, François Audenet, Herve Lang, Sebastien Bergerat, Guillaume Fraisse, Nicolas Grenier, François Cornelis, Cosmina Nedelcu, Sofiane Béjar, Gaëlle Fromont-Hankard, Yves Allory, Véronique Lindner, Virginie Verkarre, Laurent Daniel, Mokrane Yacoub, Jean-Michel Correas, Arnaud Méjean, Nathalie Rioux-Leclercq, Karim Bensalah
PURPOSE: To evaluate and compare pathological characteristics of renal cysts Bosniak IIF, III and IV in light of recent histological classification. PATIENTS AND METHODS: The French research network for kidney cancer UroCCR conducted a multicentre study on patients treated surgically for a renal cyst between 2007 and 2016. Independent radiological and centralized pathological reviews were performed for every patient. Pathological characteristics were compared to the Bosniak classification...
May 5, 2018: World Journal of Urology
Xianglei Kong, Xiaojing Ma, Chengyin Zhang, Hong Su, Xiaojie Gong, Dongmei Xu
BACKGROUND: The presence of simple renal cyst (SRC) has been related to hypertension, the early and long-term allograft function, and aortic disease, but the relationship with kidney damage was still controversial. Accordingly, we conducted a large sample cross-sectional study to explore the association of SRC with indicators of kidney damage among Chinese adults. METHODS: A total of 42,369 adults (aged 45.8 ± 13.67 years, 70.6% males) who visited the Health Checkup Clinic were consecutively enrolled...
May 4, 2018: International Urology and Nephrology
J Rübenthaler, K Mueller-Peltzer, G Negrão de Figueiredo, E Gresser, D A Clevert
CLINICAL/METHODICAL ISSUE: Cystic renal lesions are common incidental findings in radiological imaging and they should be adequately examined to be able to characterize them as benign or malignant. STANDARD RADIOLOGICAL METHODS: It is not always possible to sufficiently characterize cystic renal lesion solely using native B‑mode sonography and color-Doppler sonography. METHODICAL INNOVATIONS: Using contrast-enhanced ultrasound (CEUS), it is possible to dynamically evaluate the perfusion of cystic renal lesions and to characterize the potential malignancy of these lesions using the Bosniak classification in order to give recommendations regarding further work-up...
May 4, 2018: Der Radiologe
A S Wasim, F Mumtaz
The Bosniak Classification is used to quantify the risk of malignancy and need for observation or radical treatment based on the findings of computed tomography (CT). The case described is that of a 65-year-old man with renal cystic disease who was initially given a Bosniak stage IIF classification and was subsequently managed with CT surveillance. CT surveillance showed increased cyst size in the left kidney with cystic changes, however, the Bosniak classification remained the same. It was not until the patient deteriorated further that an MRI was indicated...
April 2018: Journal of Surgical Case Reports
Eric M Hu, Andrew Zhang, Stuart G Silverman, Ivan M Pedrosa, Zhen J Wang, Andrew D Smith, Hersh Chandarana, Ankur Doshi, Atul B Shinagare, Erick M Remer, Samuel D Kaffenberger, David C Miller, Matthew S Davenport
PURPOSE: To determine the need for a standardized renal mass reporting template by analyzing reports of indeterminate renal masses and comparing their contents to stated preferences of radiologists and urologists. METHODS: The host IRB waived regulatory oversight for this multi-institutional HIPAA-compliant quality improvement effort. CT and MRI reports created to characterize an indeterminate renal mass were analyzed from 6 community (median: 17 reports/site) and 6 academic (median: 23 reports/site) United States practices...
April 17, 2018: Abdominal Radiology
Ahmed Eissa, Ahmed El Sherbiny, Eugenio Martorana, Giacomo M Pirola, Stefano Puliatti, Michele Scialpi, Salvatore Micali, Bernardo Rocco, Evangelos Liatsikos, Alberto Breda, Francesco Porpiglia, Giampaolo Bianchi
INTRODUCTION: Renal cysts are common findings in nearly 10% of general population. According to Bosniak classification, they are classified into simple and complex renal cysts based on their CT characteristics. The majority of simple renal cysts are asymptomatic and require no intervention. Once they become symptomatic or complicated, a non-conservative management should be considered. EVIDENCE ACQUISITION: This paper is a narrative review of existing manuscripts regarding the non-conservative management of renal cysts...
April 2018: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
Amanda F Saltzman, Alonso Carrasco, Alexandra N Colvin, Mariana L Meyers, Nicholas G Cost
PURPOSE: To characterize and apply the modified Bosniak classification system to a cohort of children with cystic renal lesions and known surgical pathology. MATERIALS AND METHODS: We identified all patients at our institution with cystic renal masses that also underwent surgery for these lesions. Patients without available preoperative imaging or pathology were excluded. All radiological imaging was independently reviewed by a pediatric radiologist blinded to pathology...
March 20, 2018: Journal of Urology
Mahyar Kashan, Mazyar Ghanaat, Andreas M Hötker, Cihan Duzgol, Alejandro Sanchez, Renzo G DiNatale, Kyle A Blum, Maria F Becerra, Brandon J Manley, Jozefina Casuscelli, Michael Chiok, Jonathan A Coleman, Paul Russo, Satish K Tickoo, Oguz Akin, A Ari Hakimi
PURPOSE: We evaluated the outcomes of surgical intervention and active surveillance in patients diagnosed with cystic renal cell carcinoma at our hypothesized radiological cutoff of greater than 50% cystic. MATERIALS AND METHODS: We identified all 430 patients with a pathologically confirmed cystic renal mass that fit our criteria from 2000 to 2015. The 292 patients with a lack of computerized tomography, tumors less than 50% cystic on imaging, multifocal tumors and prior renal cell carcinoma were excluded from study...
March 1, 2018: Journal of Urology
Cameron Jonathan Lam, Anil Kapoor
INTRODUCTION: We sought to evaluate the pathological results of renal masses in comparison with Bosniak III renal cystic lesions to determine the actual malignancy risk. METHODS: A retrospective review of Bosniak III renal lesions identified by computed tomography (CT) or magnetic resonance imaging (MRI) were collected from our patients between August 1, 2013 and December 31, 2015 who underwent surgical excision. TNM stage, histology, Fuhrman grade, and maximum lesion size data was collected...
February 23, 2018: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
O Hélénon, A Crosnier, V Verkarre, S Merran, A Méjean, J-M Correas
Ultrasound and slice imaging are currently the key modalities for diagnosing simple renal cysts. Benign simple renal cysts are defined by a set of strict criteria. Any cystic lesions that do not meet these criteria should be classified as "atypical" or "complex" and considered as suspicious. For over three decades, the Bosniak classification has been the central tool for diagnosing renal cystic masses larger than 1 cm. The Bosniak classification is based upon the results of a well-established pre- and post-contrast computed tomography (CT) protocol...
April 2018: Diagnostic and Interventional Imaging
Tiana J Raphel, Davis T Weaver, Lincoln L Berland, Brian R Herts, Alec J Megibow, Amy B Knudsen, Pari V Pandharipande
Purpose To determine the effects of patient age and comorbidity level on life expectancy (LE) benefits associated with imaging follow-up of Bosniak IIF renal cysts and pancreatic side-branch (SB) intraductal papillary mucinous neoplasms (IPMNs). Materials and Methods A decision-analytic Markov model to evaluate LE benefits was developed. Hypothetical cohorts with varied age (60-80 years) and comorbidities (none, mild, moderate, or severe) were evaluated. For each finding, LE projections from two strategies were compared: imaging follow-up and no imaging follow-up...
May 2018: Radiology
Jianguo Zhong, Fang Cao, Xiaojun Guan, Junfa Chen, Zhongxiang Ding, Minming Zhang
A classification system of renal cysts developed by Bosniak is based on computed tomography (CT) findings and has been applied to deal with the complex cystic renal masses. Magnetic resonance (MR) has excellent soft-tissue resolution, it has been used to further evaluate some complex renal lesions, especially those suspected of containing soft tissue components and hyperattenuating cystic lesions seen on CT. Compared with CT, MR images may find additional information, which may lead to inconsistent classification...
December 2017: Medicine (Baltimore)
Tomas Pitra, Kristyna Pivovarcikova, Radek Tupy, Reza Alaghehbandan, Tana Barakova, Ivan Travnicek, Kristyna Prochazkova, Tobias Klatte, Piotr Chlosta, Ondrej Hes, Milan Hora
INTRODUCTION: CT imaging is the standard examination for renal cystic lesions and defines the Bosniak category, which dictates further management. Given that Bosniak II/IIF/III renal cystic lesions can potentially harbor renal cell carcinoma (RCC), additional diagnostic modalities may be required in management decision making. AIM: To determine the value of additional magnetic resonance imaging in CT-defined Bosniak IIF-III renal cystic lesions. MATERIALS AND METHODS: This a multicenter retrospective study of 46 consecutive patients, diagnosed with cystic renal lesions between 2009 and 2016...
January 30, 2018: World Journal of Urology
Sheng F Oon, Robert W Foley, Deirdre Quinn, David M Quinlan, Robert G Gibney
BACKGROUND: Focal renal masses are typically evaluated by means of triphasic contrast-enhanced CT or MRI scan but use of iodinated contrast or gadolinium is unsuitable for some patients. Contrast-enhanced ultrasound (CEUS) is an imaging alternative in this scenario but has limited availability in Ireland. AIM: The aim of the study was to retrospectively evaluate experience with selective use of CEUS for non-invasive characterization of focal renal masses in a tertiary referral institution in Ireland, with a particular focus on cystic renal lesions and the influence of CEUS on final Bosniak classification and treatment outcomes...
December 7, 2017: Irish Journal of Medical Science
Eric M Hu, James H Ellis, Stuart G Silverman, Richard H Cohan, Elaine M Caoili, Matthew S Davenport
RATIONALE AND OBJECTIVE: We aimed to determine the frequency and clinical significance of homogeneous renal masses measuring 21-39 Hounsfield units on contrast-enhanced computed tomography (CT). METHODS: Subjects 40-69 years old undergoing portal-venous-phase contrast-enhanced abdominal CT from January 1, 2006 to December 31, 2010 with slice thickness ≤5 mm and no prior CT or magnetic resonance imaging were identified (n = 1387) for this institutional review board-approved retrospective cohort study...
February 2018: Academic Radiology
Peter Weibl, Milan Hora, Boris Kollarik, Kristina Kalusova, Tomas Pitra, Mesut Remzi, Wilhelm Hübner, Pascal Balzer, Tobias Klatte
OBJECTIVES: To analyse the management, pathology and outcomes of complex renal cystic masses (CRCM) and to develop a decision-making tool for daily clinical care using the Bosniak classification system for CRCM. PATIENTS AND METHODS: A comprehensive dataset of 185 patients with 188 CRCM and a minimum follow-up of 3 years were analysed for management, pathology and outcomes. RESULTS: We analysed 35 Bosniak II, 34 Bosniak IIF, 58 Bosniak III, and 61 Bosniak IV lesions...
June 2017: Arab Journal of Urology
Pedro N Mousessian, Fernando I Yamauchi, Thais C Mussi, Ronaldo H Baroni
OBJECTIVE: The primary purpose of this study is to determine the malignancy rate, histologic grade, and initial stage of surgically treated complex renal cysts classified as Bosniak category III or IV. For nonsurgical lesions, a secondary objective was to evaluate lesion progression on follow-up examinations. MATERIALS AND METHODS: We searched our database for cystic lesions classified as Bosniak III or IV category on CT or MRI from January 2008 to April 2016. Surgically resected lesions, per category, were correlated with information on pathologic reports to obtain malignancy rates...
December 2017: AJR. American Journal of Roentgenology
Thenappan Chandrasekar, Ardalan E Ahmad, Kamel Fadaak, Kartik Jhaveri, Jaimin R Bhatt, Michael A S Jewett, Antonio Finelli
PURPOSE: We evaluated intervention rates, progression and cancer specific survival outcomes in patients with complex renal cysts in a single center experience. MATERIALS AND METHODS: We used the Montage™ radiology data mining system to retrospectively identify all reported cases of complex renal cyst at our institution from 2001 to 2013. The primary study end points were overall and cancer specific survival. The secondary end points included radiographic progression and upgrading, clinical progression and final histology on surgical pathology...
September 20, 2017: Journal of Urology
Hussein D Aoun, Peter J Littrup, Mohamed Jaber, Fatima Memon, Barbara Adam, Mark Krycia, Matthew Prus, Elisabeth Heath, Edson Pontes
PURPOSE: To retrospectively assess long-term outcomes of percutaneous renal cryoablation, including factors affecting complications and local recurrence rates. MATERIALS AND METHODS: A total of 357 computed tomographic (CT) fluoroscopy-guided percutaneous cryoablation procedures were performed for 382 masses in 302 outpatients; 347 were biopsy-proven renal-cell carcinoma (RCC) or Bosniak category > III masses (n = 28). Benign pathologic conditions (n = 18) or metastatic non-RCC disease (n = 17) were included to analyze procedural complication rate, but recurrence rates, tumor staging, and nephrometry score were limited to RCCs...
October 2017: Journal of Vascular and Interventional Radiology: JVIR
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