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Screening programs for renal cell carcinoma: a systematic review by the EAU young academic urologists renal cancer working group. World J Urol 2022; 41:929-940. [PMID: 35362747 PMCID: PMC10160199 DOI: 10.1007/s00345-022-03993-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/12/2022] [Indexed: 11/27/2022] Open
Abstract
PURPOSE To systematically review studies focused on screening programs for renal cell carcinoma (RCC) and provide an exhaustive overview on their clinical impact, potential benefits, and harms. METHODS A systematic review of the recent English-language literature was conducted according to the European Association of Urology guidelines and the PRISMA statement recommendations (PROSPERO ID: CRD42021283136) using the MEDLINE, Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov databases. Risk-of-bias assessment was performed according to the QUality In Prognosis Studies (QUIPS) tool. RESULTS Overall, nine studies and one clinical trials were included. Eight studies reported results from RCC screening programs involving a total of 159 136 patients and four studies reported screening cost-analysis. The prevalence of RCC ranged between 0.02 and 0.22% and it was associated with the socio-demographic characteristics of the subjects; selection of the target population decreased, overall, the screening cost per diagnosis. CONCLUSIONS Despite an increasing interest in RCC screening programs from patients and clinicians there is a relative lack of studies reporting the efficacy, cost-effectiveness, and the optimal modality for RCC screening. Targeting high-risk individuals and/or combining detection of RCC with other health checks represent pragmatic options to improve the cost-effectiveness and reduce the potential harms of RCC screening.
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Zhu Z, Zhang Y, Wang H, Jiang T, Zhang M, Zhang Y, Su B, Tian Y. Renal Cell Carcinoma Associated With HIV/AIDS: A Review of the Epidemiology, Risk Factors, Diagnosis, and Treatment. Front Oncol 2022; 12:872438. [PMID: 35433425 PMCID: PMC9010566 DOI: 10.3389/fonc.2022.872438] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/07/2022] [Indexed: 12/12/2022] Open
Abstract
Renal cell carcinoma (RCC), one of the most common genitourinary tumors, is induced by many factors, primarily smoking, obesity, and hypertension. As a non-acquired immunodeficiency syndrome (AIDS)-defining cancer, human immunodeficiency virus (HIV) may also play a critical role in the incidence and progression of RCC. It is evident that individuals who are infected with HIV are more likely than the general population to develop RCC. The age of RCC diagnosis among HIV-positive patients is younger than among HIV-negative individuals. However, many other characteristics remain unknown. With the increase in RCC incidence among HIV-infected patients, more research is being conducted to discover the relationship between RCC and HIV, especially with regard to HIV-induced immunodeficiency, diagnosis, and treatment. Unexpectedly, the majority of the literature suggests that there is no relationship between RCC and HIV-induced immunodeficiency. Nonetheless, differences in pathology, symptoms, or treatment in HIV-positive patients diagnosed with RCC are a focus. In this review, we summarize the association of RCC with HIV in terms of epidemiology, risk factors, diagnosis, and treatment.
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Affiliation(s)
- Zhiqiang Zhu
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- Department of Urology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Yihang Zhang
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Hu Wang
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Taiyi Jiang
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Mengmeng Zhang
- Department of Urology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Yu Zhang
- Department of Urology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Bin Su
- Beijing Key Laboratory for HIV/AIDS Research, Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
- *Correspondence: Ye Tian, ; Bin Su,
| | - Ye Tian
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- *Correspondence: Ye Tian, ; Bin Su,
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3
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An overview of non-invasive imaging modalities for diagnosis of solid and cystic renal lesions. Med Biol Eng Comput 2019; 58:1-24. [DOI: 10.1007/s11517-019-02049-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 09/17/2019] [Indexed: 12/22/2022]
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Whole-body computed tomography: a new point of view in a hospital check-up unit? Our experience in 6516 patients. Radiol Med 2019; 124:1199-1211. [PMID: 31407223 DOI: 10.1007/s11547-019-01068-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 08/06/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND There is a growing awareness that prevention and early diagnosis may reduce the high mortality associated with cancer, cardiovascular and other diseases. The role of whole-body computed tomography (WB-CT) in self-referred and asymptomatic patients has been debated. AIM To determine frequency and spectrum of WB-CT findings in average-risk subjects derived from a Medical-Check-Up-Unit, to evaluate recommendations reported and distribution according to sex and age-groups. MATERIALS AND METHODS We retrospectively reviewed 6516 subjects who underwent WB-CT (June 2004/February 2015). All were > 40 years and referred by Medical-Check-Up-Unit of our hospital. The main findings were categorized and classified as normal or not. Its distribution according to sex and age-groups was evaluated using Chi-square test and linear-by-linear association test, respectively. Number of recommendations, type and interval of follow-up were recorded. Descriptive statistics were used. RESULTS WB-CT performed in 6516 patients (69% men, 31% women, mean age = 58.4 years) revealed chest (81.4%), abdominal (93.06%) and spine (65.39%) abnormalities. Only 1.60% had completely normal exploration. Abnormal WB-CT in men was significantly higher than women (98.64% vs. 97.87%; p = 0.021), with significant increase as age was higher (40-49 years: 95.65%; 50-59 years: 98.33%; 60-69 years: 99.47%; > 69 years: 99.89%) (p < 0.001). Although most findings were benign, we detected 1.47% primary tumors (96, mainly 35 kidneys and 15 lungs). 17.39% of patients received at least one recommendation predominantly in chest (78.19%) and follow-up imaging (69.89%). CONCLUSION The most common WB-CT findings in asymptomatic subjects are benign. However, this examination allows identifying an important number of relevant and precocious findings that significantly increase with age, involving changes in lifestyle and precocious treatment.
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Rossi SH, Klatte T, Usher-Smith J, Stewart GD. Epidemiology and screening for renal cancer. World J Urol 2018; 36:1341-1353. [PMID: 29610964 PMCID: PMC6105141 DOI: 10.1007/s00345-018-2286-7] [Citation(s) in RCA: 169] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 03/28/2018] [Indexed: 02/06/2023] Open
Abstract
PURPOSE The widespread use of abdominal imaging has affected the epidemiology of renal cell carcinoma (RCC). Despite this, over 25% of individuals with RCC have evidence of metastases at presentation. Screening for RCC has the potential to downstage the disease. METHODS We performed a literature review on the epidemiology of RCC and evidence base regarding screening. Furthermore, contemporary RCC epidemiology data was obtained for the United Kingdom and trends in age-standardised rates of incidence and mortality were analysed by annual percentage change statistics and joinpoint regression. RESULTS The incidence of RCC in the UK increased by 3.1% annually from 1993 through 2014. Urinary dipstick is an inadequate screening tool due to low sensitivity and specificity. It is unlikely that CT would be recommended for population screening due to cost, radiation dose and increased potential for other incidental findings. Screening ultrasound has a sensitivity and specificity of 82-83% and 98-99%, respectively; however, accuracy is dependent on tumour size. No clinically validated urinary nor serum biomarkers have been identified. Major barriers to population screening include the relatively low prevalence of the disease, the potential for false positives and over-diagnosis of slow-growing RCCs. Individual patient risk-stratification based on a combination of risk factors may improve screening efficiency and minimise harms by identifying a group at high risk of RCC. CONCLUSION The incidence of RCC is increasing. The optimal screening modality and target population remain to be elucidated. An analysis of the benefits and harms of screening for patients and society is warranted.
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Affiliation(s)
- Sabrina H. Rossi
- Academic Urology Group, University of Cambridge, Addenbrooke’s Hospital, Cambridge Biomedical Campus, Hills Road, Box 43, Cambridge, CB2 0QQ UK
| | - Tobias Klatte
- Department of Urology, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, CB2 0QQ UK
| | - Juliet Usher-Smith
- The Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, CB2 0SR UK
| | - Grant D. Stewart
- Academic Urology Group, University of Cambridge, Addenbrooke’s Hospital, Cambridge Biomedical Campus, Hills Road, Box 43, Cambridge, CB2 0QQ UK
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Abstract
The increase in serendipitous detection of solid renal masses on imaging has not resulted in a reduction in mortality from renal cell carcinoma. Consequently, efforts for improved lesion characterization have been pursued and incorporated into management algorithms for distinguishing clinically significant tumors from those with favorable histology or benign conditions. Although diagnostic imaging strategies have evolved for optimized lesion detection, distinction between benign tumors and both indolent and aggressive malignant neoplasms remain an important diagnostic challenge. Recent advances in cross-sectional imaging have expanded the role of these tests in the noninvasive characterization of solid renal tumors.
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Affiliation(s)
- Fernando U Kay
- Department of Radiology; UT Southwestern Medical Center, 2201 Inwood Road, Suite 210, Dallas, TX 75390, USA
| | - Ivan Pedrosa
- Department of Radiology; UT Southwestern Medical Center, 2201 Inwood Road, Suite 210, Dallas, TX 75390, USA.
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Rossi SH, Hsu R, Blick C, Goh V, Nathan P, Nicol D, Fleming S, Sweeting M, Wilson ECF, Stewart GD. Meta-analysis of the prevalence of renal cancer detected by abdominal ultrasonography. Br J Surg 2017; 104:648-659. [PMID: 28407225 DOI: 10.1002/bjs.10523] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 01/24/2017] [Accepted: 02/02/2017] [Indexed: 01/16/2023]
Abstract
BACKGROUND The potential for an ultrasound-based screening programme for renal cell carcinoma (RCC) to improve survival through early detection has been the subject of much debate. The prevalence of ultrasound-detected asymptomatic RCC is an important first step to establishing whether a screening programme may be feasible. METHODS A systematic search of MEDLINE and Embase was performed up to March 2016 to identify studies reporting the prevalence of renal masses and RCC. Two populations of patients were chosen: asymptomatic individuals undergoing screening ultrasonography and patients undergoing ultrasonography for abdominal symptoms not related to RCC. A random-effects meta-analysis was performed. Study quality was evaluated using a validated eight-point checklist. RESULTS Sixteen studies (413 551 patients) were included in the final analysis. The pooled prevalence of renal mass was 0·36 (95 per cent c.i. 0·23 to 0·52) per cent and the prevalence of histologically proven RCC was 0·10 (0·06 to 0·15) per cent. The prevalence of RCC was more than double in studies from Europe and North America than in those from Asia: 0·17 (0·09 to 0·27) versus 0·06 (0·03 to 0·09) per cent respectively. Data on 205 screen-detected RCCs showed that 84·4 per cent of tumours were stage T1-T2 N0, 13·7 per cent were T3-T4 N0, and only 2·0 per cent had positive nodes or metastases at diagnosis. CONCLUSION At least one RCC would be detected per 1000 individuals screened. The majority of tumours identified are early stage (T1-T2).
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Affiliation(s)
- S H Rossi
- Academic Urology Group, University of Cambridge, Addenbrooke's Hospital, Cambridge Biomedical Campus, Cambridge, UK
| | - R Hsu
- Academic Urology Group, University of Cambridge, Addenbrooke's Hospital, Cambridge Biomedical Campus, Cambridge, UK
| | - C Blick
- Harold Hopkins Department of Urology, Royal Berkshire Hospital, Reading, UK
| | - V Goh
- Division of Imaging Sciences and Biomedical Engineering, King's College London, and Department of Radiology, Guy's and St Thomas' Hospitals NHS Trust, London, UK
| | - P Nathan
- Department of Oncology, Mount Vernon Cancer Centre, Northwood, UK
| | - D Nicol
- Department of Urology, Royal Marsden Hospital, and Institute of Cancer Research, London, UK
| | - S Fleming
- Centre for Forensic and Legal Medicine, University of Dundee, Ninewells Hospital, Dundee, UK
| | - M Sweeting
- Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - E C F Wilson
- Cambridge Centre for Health Services Research, University of Cambridge, and Cambridge Clinical Trials Unit, Addenbrooke's Hospital, Cambridge Biomedical Campus, Cambridge, UK
| | - G D Stewart
- Academic Urology Group, University of Cambridge, Addenbrooke's Hospital, Cambridge Biomedical Campus, Cambridge, UK
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Abstract
Detection of solid renal masses has increased, although it has not resulted in significant mortality reduction from renal cell carcinoma. Efforts for improved lesion characterization have been pursued and incorporated in management algorithms, in order to distinguish clinically significant tumors from favorable or benign conditions. Concurrently, imaging methods have produced evidence supporting their role as useful tools not only in lesion detection but also characterization. In addition, newer modalities, such as contrast-enhanced ultrasonography, and advanced applications of MR imaging, are being investigated. This article reviews the current role of different imaging methods in the characterization of solid renal masses.
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Affiliation(s)
- Fernando U Kay
- Department of Radiology, UT Southwestern Medical Center, Harry Hines 5323, 2201 Inwood Road, Dallas, TX 75390, USA
| | - Ivan Pedrosa
- Department of Radiology and Advanced Imaging Research Center, UT Southwestern Medical Center, Harry Hines 5323, 2201 Inwood Road, Dallas, TX 75390, USA.
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9
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[Modern imaging of renal tumors - application in diagnostics and therapy. Characterization, operation planning and therapy monitoring of renal lesions]. Radiologe 2016; 56:285-95; quiz 296. [PMID: 26961228 DOI: 10.1007/s00117-016-0087-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
This article elucidates the various tools used for the diagnostics and characterization of renal lesions. The advantages and limitations of ultrasound, contrast-enhanced ultrasound (CEUS), computed tomography (CT) and magnetic resonance imaging (MRI) are presented and discussed. In addition, modern imaging features of CT and MRI, such as iodine quantification in CT as well as diffusion-weighted and perfusion imaging in MRI are presented. Lastly, recent developments in standardized reporting of renal tumors regarding the intraoperative surgical risk are presented.
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Sankineni S, Brown A, Cieciera M, Choyke PL, Turkbey B. Imaging of renal cell carcinoma. Urol Oncol 2015; 34:147-55. [PMID: 26094171 DOI: 10.1016/j.urolonc.2015.05.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 05/13/2015] [Accepted: 05/19/2015] [Indexed: 02/02/2023]
Abstract
Renal cell carcinoma (RCC) is the most common kidney cancer in adults. Early and accurate imaging plays an important role in the detection, staging, and follow-up of RCC. Patient care and case management revolves heavily around diagnostic imaging so it is imperative that appropriate and adequate imaging is acquired. There are well-established standard imaging protocols available to patients and their providers, although at the same time, there is also extensive ongoing research on improving the various modalities. Ultrasound has been the most commonly used imaging technique for renal imaging in general. However, computed tomography (CT) is the first choice for imaging of renal masses, and has been the mainstay for several decades. High resolution, reproducibility, reasonable preparation and acquisition time, and acceptable cost allow CT to remain as the primary choice for radiologic imaging. Magnetic resonance imaging (MRI) is considered as an important alternative in patients requiring further imaging or in cases of allergies, pregnancy, or surveillance. With increasing concern over radiation exposure, there has been a trend toward the higher use of MRI. It is important to understand the various imaging options available, as well as the current status of and results from recent RCC imaging studies. In this review we discuss these modalities, including the current state of ultrasound, CT, and MRI in RCC.
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Affiliation(s)
- Sandeep Sankineni
- Molecular Imaging Program, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Anna Brown
- Molecular Imaging Program, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Matthaeus Cieciera
- Molecular Imaging Program, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Peter L Choyke
- Molecular Imaging Program, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Baris Turkbey
- Molecular Imaging Program, National Cancer Institute, National Institutes of Health, Bethesda, MD.
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Ikezawa E, Kondo T, Hashimoto Y, Kobayashi H, Iizuka J, Takagi T, Omae K, Tanabe K. Clinical symptoms predict poor overall survival in chronic-dialysis patients with renal cell carcinoma associated with end-stage renal disease. Jpn J Clin Oncol 2014; 44:1096-100. [PMID: 25139162 DOI: 10.1093/jjco/hyu117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE To evaluate which clinical symptoms predict the survival of patients with renal cell carcinoma associated with end-stage renal disease under chronic dialysis. METHODS We retrospectively evaluated 401 patients with renal cell carcinoma associated with end-stage renal disease who underwent radical nephrectomy at our institute up through December 2012. Patients were divided into two groups: the symptomatic group and the incidental group, by diagnosis. We compared the clinicopathologic features and patient survival of the two groups and investigated prognostic factors using Cox multivariate analysis. RESULTS Of the 401 patients, 124 (30.9%) were in the symptomatic group and 277 (69.0%) in the incidental group. The symptomatic group included more advanced tumors in terms of larger tumor size, higher stage and higher grade compared with the incidental group. The 5-year cancer-specific survival and overall survival of the symptomatic and incidental groups were 76.9 vs. 95.3% (P < 0.001) and 64.2 vs. 84.9% (P < 0.001), respectively. On multivariate analysis, the presence of symptoms, higher age, higher stage, diabetic nephropathy and longer hemodialysis duration were independent prognostic factors. CONCLUSIONS Symptomatic detection was significantly associated with worse overall survival in patients with renal cell carcinoma associated with end-stage renal disease as well as sporadic renal cell carcinoma. The high incidence of renal cell carcinoma as well as the poor oncologic outcome in patients with longer dialysis therapy may suggest an important role for routine screening in these patients.
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Affiliation(s)
- Eri Ikezawa
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Tsunenori Kondo
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | | | | | - Junpei Iizuka
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Toshio Takagi
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Kenji Omae
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Kazunari Tanabe
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
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Hofbauer SL, de Martino M, Seemann C, Zamani N, Lucca I, Haitel A, Shariat SF, Klatte T. Associations between presenting symptoms, clinicopathological parameters, and prognosis in a contemporary series of patients with renal cell carcinoma. Korean J Urol 2014; 55:505-10. [PMID: 25132943 PMCID: PMC4131077 DOI: 10.4111/kju.2014.55.8.505] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 06/17/2014] [Indexed: 12/23/2022] Open
Abstract
Purpose To evaluate the impact of presenting symptoms on survival in a contemporary series of patients with renal cell carcinoma (RCC). Materials and Methods We prospectively recorded data on the presenting symptoms, pathology, and RCC-specific survival of 633 consecutive RCC patients who underwent surgery between 2003 and 2012. Results Four hundred thirty-three RCCs (68%) were incidental, 111 (18%) were associated with local symptoms, and 89 (14%) were associated with systemic symptoms. Among those with incidental RCC, 317 patients (73%) were completely asymptomatic and 116 patients (27%) presented with symptoms not related to the tumor. During a median follow-up interval of 40 months (interquartile range: 39 to 69 months), 77 patients died from RCC. In univariate analyses, symptom classification was significantly associated with RCC-specific survival (p<0.001). Patients with incidental RCC and unrelated symptoms tended to have worse prognosis than did patients who were completely asymptomatic, although this difference was not statistically significant (p=0.057). The symptom classification was associated with advanced TNM stages (p<0.001) and grade (p<0.001). Conclusions This study confirms that presenting symptoms are associated with tumor characteristics and survival. The majority of RCCs are diagnosed incidentally in patients without any symptoms or with symptoms not related to RCC. Patients in the latter group tend to have a worse prognosis than do patients who are completely asymptomatic. With the increasing number of incidentally diagnosed RCCs, substratification of patients with incidental tumors may be prognostically relevant.
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Affiliation(s)
- Sebastian L Hofbauer
- Department of Urology, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Michela de Martino
- Department of Urology, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Christoph Seemann
- Department of Urology, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Nura Zamani
- Department of Urology, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Ilaria Lucca
- Department of Urology, Medical University of Vienna, Vienna General Hospital, Vienna, Austria. ; Department of Urology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Andrea Haitel
- Clinical Institute of Pathology, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Shahrokh F Shariat
- Department of Urology, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
| | - Tobias Klatte
- Department of Urology, Medical University of Vienna, Vienna General Hospital, Vienna, Austria
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