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Adeniran AJ, Shuch B, Humphrey PA. Sarcomatoid and Rhabdoid Renal Cell Carcinoma: Clinical, Pathologic, and Molecular Genetic Features. Am J Surg Pathol 2024; 48:e65-e88. [PMID: 38736105 DOI: 10.1097/pas.0000000000002233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Renal cell carcinoma (RCC) with sarcomatoid and rhabdoid morphologies has an aggressive biological behavior and a typically poor prognosis. The current 2022 WHO classification of renal tumors does not include them as distinct histologic entities but rather as transformational changes that may arise in a background of various distinct histologic types of RCC. The sarcomatoid component shows malignant spindle cells that may grow as intersecting fascicles, which is reminiscent of pleomorphic undifferentiated sarcoma. The rhabdoid cells are epithelioid cells with eccentrically located vesicular nuclei with prominent nucleoli and large intracytoplasmic eosinophilic inclusions. Studies have shown that RCCs with sarcomatoid and rhabdoid differentiation have distinctive molecular features. Sarcomatoid RCC harbors shared genomic alterations in carcinomatous and rhabdoid components, but also enrichment of specific genomic alterations in the sarcomatoid element, suggesting molecular pathways for development of sarcomatoid growth from a common clonal ancestor. Rhabdoid differentiation also arises through clonal evolution although less is known of specific genomic alterations in rhabdoid cells. Historically, treatment has lacked efficacy, although recently immunotherapy with PD-1/PD-L1/CTLA-4 inhibitors has produced significant clinical responses. Reporting of sarcomatoid and rhabdoid features in renal cell carcinoma is required by the College of American Pathologists and the International Collaboration on Cancer Reporting. This manuscript reviews the clinical, pathologic, and molecular features of sarcomatoid RCC and rhabdoid RCC with emphasis on the morphologic features of these tumors, significance of diagnostic recognition, the molecular mechanisms of tumorigenesis and differentiation along sarcomatoid and rhabdoid lines, and advances in treatment, particularly immunotherapy.
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Affiliation(s)
| | - Brian Shuch
- Department of Urology, University of California Los Angeles, Los Angeles, CA
| | - Peter A Humphrey
- Department of Pathology, Yale University School of Medicine, New Haven, CT
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El Zarif T, Semaan K, Eid M, Seo JH, Garinet S, Davidsohn MP, Sahgal P, Fortunato B, Canniff J, Nassar AH, Abou Alaiwi S, Bakouny Z, Lakshminarayanan G, Savignano H, Lyons K, Matar S, Ali A, Saad E, Saliby RM, Cordeiro P, Zhang Z, El Ahmar N, Laimon YN, Labaki C, Shah V, Freeman D, O'Toole J, Lee GSM, Hwang J, Pomerantz M, Signoretti S, Van Allen EM, Xie W, Berchuck JE, Viswanathan SR, Braun DA, Choueiri TK, Freedman ML, Baca SC. Epigenomic signatures of sarcomatoid differentiation to guide the treatment of renal cell carcinoma. Cell Rep 2024; 43:114350. [PMID: 38870013 DOI: 10.1016/j.celrep.2024.114350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/19/2024] [Accepted: 05/28/2024] [Indexed: 06/15/2024] Open
Abstract
Renal cell carcinoma with sarcomatoid differentiation (sRCC) is associated with poor survival and a heightened response to immune checkpoint inhibitors (ICIs). Two major barriers to improving outcomes for sRCC are the limited understanding of its gene regulatory programs and the low diagnostic yield of tumor biopsies due to spatial heterogeneity. Herein, we characterized the epigenomic landscape of sRCC by profiling 107 epigenomic libraries from tissue and plasma samples from 50 patients with RCC and healthy volunteers. By profiling histone modifications and DNA methylation, we identified highly recurrent epigenomic reprogramming enriched in sRCC. Furthermore, CRISPRa experiments implicated the transcription factor FOSL1 in activating sRCC-associated gene regulatory programs, and FOSL1 expression was associated with the response to ICIs in RCC in two randomized clinical trials. Finally, we established a blood-based diagnostic approach using detectable sRCC epigenomic signatures in patient plasma, providing a framework for discovering epigenomic correlates of tumor histology via liquid biopsy.
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Affiliation(s)
- Talal El Zarif
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Karl Semaan
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA; The Eli and Edythe L. Broad Institute, Cambridge, MA, USA
| | - Marc Eid
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Ji-Heui Seo
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Simon Garinet
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Matthew P Davidsohn
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Pranshu Sahgal
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Brad Fortunato
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - John Canniff
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Amin H Nassar
- Section of Medical Oncology, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Sarah Abou Alaiwi
- Section of Cardiology, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Ziad Bakouny
- Department of Medical Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Hunter Savignano
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Kevin Lyons
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Sayed Matar
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
| | - Atef Ali
- Department of Medicine, University of Minnesota Masonic Cancer Center, Minneapolis, MN, USA
| | - Eddy Saad
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Renee Maria Saliby
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Paulo Cordeiro
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA; The Eli and Edythe L. Broad Institute, Cambridge, MA, USA
| | - Ziwei Zhang
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Nourhan El Ahmar
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
| | | | - Chris Labaki
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
| | - Valisha Shah
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Dory Freeman
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Jillian O'Toole
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Gwo-Shu Mary Lee
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Justin Hwang
- Department of Medicine, University of Minnesota Masonic Cancer Center, Minneapolis, MN, USA
| | - Mark Pomerantz
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Sabina Signoretti
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
| | - Eliezer M Van Allen
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; The Eli and Edythe L. Broad Institute, Cambridge, MA, USA
| | - Wanling Xie
- Department of Data Science, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Jacob E Berchuck
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Srinivas R Viswanathan
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Medicine, Harvard Medical School, Boston, MA, USA; Cancer Program, Broad Institute of MIT and Harvard, Cambridge, MA, USA; Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - David A Braun
- Section of Medical Oncology, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA; Center of Molecular and Cellular Oncology, Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Toni K Choueiri
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.
| | - Matthew L Freedman
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA.
| | - Sylvan C Baca
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA; The Eli and Edythe L. Broad Institute, Cambridge, MA, USA.
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Zhou Y, Gu Y, Tang C, Dong J, Xu S, Sheng Z, Zhao X, Hu J, Shen T, He H, Yi X, Zhou W, Qu L, Ge J, Han C. Establishment and validation of a nomogram to select patients with metastatic sarcomatoid renal cell carcinoma suitable for cytoreductive radical nephrectomy. Front Oncol 2023; 13:1239405. [PMID: 37941564 PMCID: PMC10627788 DOI: 10.3389/fonc.2023.1239405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 09/25/2023] [Indexed: 11/10/2023] Open
Abstract
Introduction Metastatic renal cell carcinoma (mRCC) with sarcomatoid features has a poor prognosis. Cytoreductive radical nephrectomy (CRN) can improve prognosis, but patient selection is unclear. This study aimed to develop a prediction model for selecting patients suitable for CRN. Materials and methods Patients with a diagnosis of mRCC with sarcomatoid features in the Surveillance, Epidemiology, and End Results (SEER) database between 2010 and 2015 were retrospectively reviewed. CRN benefit was defined as a survival time longer than the median overall survival (OS) in patients who did not receive CRN. A prediction nomogram was established and validated using the SEER cohort (training and internal validation) and an external validation cohort. Results Of 900 patients with sarcomatoid mRCC, 608 (67.6%) underwent CRN. OS was longer in the CRN group than in the non-CRN group (8 vs. 6 months, hazard ratio (HR) = 0.767, p = 0.0085). In the matched CRN group, 124 (57.7%) patients survived >6 months after the surgery and were considered to benefit from CRN. Age, T-stage, systematic therapy, metastatic site, and lymph nodes were identified as independent factors influencing OS after CRN, which were included in the prediction nomogram. The monogram performed well on the training set (area under the receiver operating characteristic (AUC) curve = 0.766, 95% confidence interval (CI): 0.687-0.845), internal validation set (AUC = 0.796, 95% CI: 0.684-0.908), and external validation set (AUC = 0.911, 95% CI: 0.831-0.991). Conclusions A nomogram was constructed and validated with good accuracy for selecting patients with sarcomatoid mRCC suitable for CRN.
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Affiliation(s)
- Yulin Zhou
- Medical College of Soochow University, Suzhou, China
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yufeng Gu
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Chaopeng Tang
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jie Dong
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Song Xu
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Zhengcheng Sheng
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xiaodong Zhao
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jun Hu
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Tianyi Shen
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Haowei He
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xiaoming Yi
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Wenquan Zhou
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Le Qu
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jingping Ge
- Department of Urology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Conghui Han
- Medical College of Soochow University, Suzhou, China
- Department of Urology, Xuzhou Central Hospital, Xuzhou, China
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Matar S, El Ahmar N, Laimon YN, Ghandour F, Signoretti S. The Role of the Pathologist in Renal Cell Carcinoma Management. Hematol Oncol Clin North Am 2023; 37:849-862. [PMID: 37258353 DOI: 10.1016/j.hoc.2023.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Recent advances in our understanding of the molecular alterations underlying different types of renal cell carcinoma (RCC), as well as the implementation of immune checkpoint inhibitors in the treatment of patients with advanced disease, have significantly expanded the role of pathologists in the management of RCC patients and in the identification of predictive biomarkers that can guide patient treatment. In this chapter, we examine pathologists' evolving role in patient care and the development of precision medicine strategies for RCC.
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Affiliation(s)
- Sayed Matar
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA; Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA
| | - Nourhan El Ahmar
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA; Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA
| | - Yasmin Nabil Laimon
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA; Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA
| | - Fatme Ghandour
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA; Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA
| | - Sabina Signoretti
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA; Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, Merkin Building, 415 Main Street, Cambridge, MA 02142, USA; Department of Oncologic Pathology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA.
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Hahn AW, Kotecha RR, Viscuse PV, Pieretti AC, Wiele AJ, Jonasch E, Lee CH, Gao J, Zurita AJ, Shah AY, Campbell MT, Sharma P, Motzer RJ, Russo P, Wood CG, Tannir NM, Voss MH, Karam JA, Hakimi AA, Msaouel P. Cytoreductive Nephrectomy for Patients with Metastatic Sarcomatoid and/or Rhabdoid Renal Cell Carcinoma Treated with Immune Checkpoint Therapy. Eur Urol Focus 2023; 9:734-741. [PMID: 36863962 PMCID: PMC10460829 DOI: 10.1016/j.euf.2023.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/09/2023] [Accepted: 02/16/2023] [Indexed: 03/04/2023]
Abstract
BACKGROUND Renal cell carcinoma (RCC) with sarcomatoid and/or rhabdoid (S/R) dedifferentiation is a highly aggressive tumor with a poor prognosis. Immune checkpoint therapy (ICT) has shown significant treatment efficacy in this subtype. There remains uncertainly regarding the role of cytoreductive nephrectomy (CN) for patients with metastatic RCC (mRCC) with S/R who received ICT. OBJECTIVE Here, we report the outcomes with ICT for patients with mRCC and S/R dedifferentiation by CN status. DESIGN, SETTING, AND PARTICIPANTS A retrospective review was conducted of 157 patients with sarcomatoid, rhabdoid, or sarcomatoid plus rhabdoid dedifferentiation who received an ICT-based regimen at two cancer centers. INTERVENTION CN performed at any time point; nephrectomy with curative intent was excluded. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS ICT treatment duration (TD) and overall survival (OS) from ICT initiation were recorded. To address the immortal time bias, a time-dependent Cox regression model was generated that accounted for confounders identified by a directed acyclic graph as well as a time-dependent nephrectomy variable. RESULTS AND LIMITATIONS A total of 118 patients underwent CN, and of them, 89 underwent upfront CN. The results did not contradict the supposition that CN does not improve ICT TD (hazard ratio [HR] 0.98, 95% confidence interval [CI] 0.65-1.47, p = 0.94) or OS from ICT initiation (HR 0.79, 95% CI 0.47-1.33, p = 0.37). In patients who underwent upfront CN compared with those who did not undergo CN, there was no association with ICT duration or OS (HR 0.61, 95% CI 0.35-1.06, p = 0.08). A detailed clinical summary of 49 patients with mRCC and rhabdoid dedifferentiation is provided. CONCLUSIONS In this multi-institutional cohort of mRCC with S/R dedifferentiation treated with ICT, CN was not significantly associated with improved TD or superior OS when accounting for the lead time bias. There appears to be a subset of patients who derive meaningful benefit from CN, so improved tools for stratification prior to CN are needed to optimize outcomes. PATIENT SUMMARY Immunotherapy has improved outcomes for patients with metastatic renal cell carcinoma (mRCC) who have sarcomatoid and/or rhabdoid (S/R) dedifferentiation, which is an aggressive and uncommon feature; yet, the utility of a nephrectomy in this setting is unclear. We found that nephrectomy did not significantly improve survival or time on immunotherapy for these patients with mRCC and S/R dedifferentiation; yet, there may be a subset of patients who benefit from this surgical approach.
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Affiliation(s)
- Andrew W Hahn
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ritesh R Kotecha
- Genitourinary Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Paul V Viscuse
- University of Virginia Cancer Center, University of Virginia, Charlottesville, VA, USA
| | - Alberto C Pieretti
- Department of Urology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Eric Jonasch
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Chung-Han Lee
- Genitourinary Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jianjun Gao
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Amado J Zurita
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Amishi Y Shah
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Matthew T Campbell
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Padmanee Sharma
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Robert J Motzer
- Genitourinary Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Paul Russo
- Genitourinary Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Christopher G Wood
- Department of Urology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Nizar M Tannir
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Martin H Voss
- Genitourinary Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jose A Karam
- Department of Urology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - A Ari Hakimi
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| | - Pavlos Msaouel
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas, MD Anderson Cancer Center, Houston, TX, USA.
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Grajo JR, Batra NV, Bozorgmehri S, Magnelli LL, O'Malley P, Terry R, Su LM, Crispen PL. Association between nuclear grade of renal cell carcinoma and the aorta-lesion-attenuation-difference. Abdom Radiol (NY) 2021; 46:5629-5638. [PMID: 34463815 DOI: 10.1007/s00261-021-03260-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 08/19/2021] [Accepted: 08/20/2021] [Indexed: 11/27/2022]
Abstract
INTRODUCTION AND BACKGROUND Several features noted on renal mass biopsy (RMB) can influence treatment selection including tumor histology and nuclear grade. However, there is poor concordance between renal cell carcinoma (RCC) nuclear grade on RMB compared to nephrectomy specimens. Here, we evaluate the association of nuclear grade with aorta-lesion-attenuation-difference (ALAD) values determined on preoperative CT scan. METHODS AND MATERIALS A retrospective review of preoperative CT scans and surgical pathology was performed on patients undergoing nephrectomy for solid renal masses. ALAD was calculated by measuring the difference in Hounsfield units (HU) between the aorta and the lesion of interest on the same image slice on preoperative CT scan. The discriminative ability of ALAD to differentiate low-grade (nuclear grade 1 and 2) and high-grade (nuclear grade 3 and 4) tumors was evaluated by sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and area under curve (AUC) using ROC analysis. Sub-group analysis by histologic sub-type was also performed. RESULTS A total of 368 preoperative CT scans in patients with RCC on nephrectomy specimen were reviewed. Median patient age was 61 years (IQR 52-68). The majority of patients were male, 66% (243/368). Tumor histology was chromophobe RCC in 7.6%, papillary RCC in 15.5%, and clear cell RCC in 76.9%. The majority, 69.3% (253/365) of tumors, were stage T1a. Nuclear grade was grade 1 in 5.46% (19/348), grade 2 in 64.7% (225/348), grade 3 in 26.2% (91/348), and grade 4 in 3.2% (11/348). Nephrographic ALAD values for grade 1, 2, 3, and 4 were 73.7, 46.5, 36.4, and 43.1, respectively (p = 0.0043). Nephrographic ALAD was able to differentiate low-grade from high-grade RCC with a sensitivity of 32%, specificity of 89%, PPV of 86%, and NPV of 36%. ROC analysis demonstrated the predictive utility of nephrographic ALAD to predict high- versus low-grade RCC with an AUC of 0.60 (95% CI 0.51-0.69). CONCLUSION ALAD was significantly associated with nuclear grade in our nephrectomy series. Strong specificity and PPV for the nephrographic phrase demonstrate a potential role for ALAD in the pre-operative setting that may augment RMB findings in assessing nuclear grade of RCC. Although this association was statistically significant, the clinical utility is limited at this time given the results of the statistical analysis (relatively poor ROC analysis). Sub-group analysis by histologic subtype yielded very similar diagnostic performance and limitations of ALAD. Further studies are necessary to evaluate this relationship further.
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Affiliation(s)
- Joseph R Grajo
- Department of Radiology, University of Florida College of Medicine, Gainesville, FL, 32610, USA.
| | - Nikhil V Batra
- Department of Urology, University of Florida College of Medicine, Gainesville, FL, 32610, USA
| | - Shahab Bozorgmehri
- Department of Epidemiology, University of Florida College of Medicine, Gainesville, FL, 32610, USA
| | - Laura L Magnelli
- Department of Radiology, University of Florida College of Medicine, Gainesville, FL, 32610, USA
| | - Padraic O'Malley
- Department of Urology, University of Florida College of Medicine, Gainesville, FL, 32610, USA
| | - Russell Terry
- Department of Urology, University of Florida College of Medicine, Gainesville, FL, 32610, USA
| | - Li-Ming Su
- Department of Urology, University of Florida College of Medicine, Gainesville, FL, 32610, USA
| | - Paul L Crispen
- Department of Urology, University of Florida College of Medicine, Gainesville, FL, 32610, USA
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Li C, Wang R, Ma W, Liu S, Yao X. Do Metastatic Kidney Cancer Patients Benefit From Cytoreductive Nephrectomy? A Real-World Retrospective Study From the SEER Database. Front Surg 2021; 8:716455. [PMID: 34557516 PMCID: PMC8454406 DOI: 10.3389/fsurg.2021.716455] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 07/26/2021] [Indexed: 02/05/2023] Open
Abstract
Introduction: The benefit of cytoreductive nephrectomy (CN) for metastatic kidney cancer has been challenged recently. The study aimed to evaluate the prognostic roles of surgical resection of primary tumor site for metastatic kidney cancer under a real-world setting. Methods: The Surveillance, Epidemiology, and End Results (SEER) database (2010–2015) and the overall survival (OS) and cancer-specific survival (CSS) were evaluated using the Cox proportional hazards regression model. One-to-one matching using the propensity score was used to estimate and compare the survival rates. Results: The SEER data contain records of 8,932 patients from 2010 to 2015. The data showed that 61.7% of the patients underwent CN while 38.2% did not receive any surgery. The median survival month for a patient without surgery was 4 months and for a patient with surgery was 19 months. The multivariate analysis showed that surgical resection of the primary tumor site was an independent favorable predictor for both OS and CSS (all p < 0.001) in the original and the matching cohort. Conclusions: In the era of target therapy, CN might still be a vital method to treat metastatic kidney cancer.
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Affiliation(s)
- Cheng Li
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ruiliang Wang
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wenchao Ma
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Shanghai Clinical College, Anhui Medical University, Hefei, China
| | - Shenghua Liu
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xudong Yao
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Shanghai Clinical College, Anhui Medical University, Hefei, China
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Yang C, Shuch B, Kluger HM, Serrano M, Kibel AS, Humphrey PA, Adeniran AJ. Adverse Histopathologic Characteristics in Small Papillary Renal Cell Carcinomas Have Minimal Impact on Prognosis. Am J Clin Pathol 2021; 156:550-558. [PMID: 34424955 DOI: 10.1093/ajcp/aqab015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES Tumor size has long been used in the management decision-making of patients with renal masses. Active surveillance had recently gained traction in selected patients with tumor size of 4 cm or less. Adverse histopathologic characteristics in papillary renal cell carcinoma (PRCC) have been shown to correlate with worse prognosis. We aimed to study whether such features in small PRCCs provide additional prognostic information. METHODS Nephrectomies from our institution were collected and reviewed to evaluate for adverse histopathologic features. Clinical follow-up information was collected for all cases. Relationships between the variables were examined by Wilcoxon test and logistic regression. RESULTS We identified 291 consecutive cases of PRCC. Adverse tumor histopathologic characteristics were significantly related to size. In PRCCs with size greater than 4 cm, there were more cases with high World Health Organization/International Society of Urological Pathology grade and necrosis. Adverse histologic features are less commonly seen in small PRCC and are not associated with lower disease-free survival or disease-specific survival. CONCLUSIONS Identification of these features in small PRCCs (≤4 cm) through needle core biopsy examination would not provide additional prognostic information in patients for whom active surveillance is considered. Clinical and radiologic follow-up in patients with small renal masses that have a known histologic diagnosis of PRCC should be sufficient.
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Affiliation(s)
- Chen Yang
- Department of Pathology, Yale School of Medicine, New Haven, CT, USA
| | - Brian Shuch
- Department of Urology, University of California Los Angeles, Los Angeles, CA, USA
| | - Harriet M Kluger
- Department of Internal Medicine, Section of Medical Oncology, Yale School of Medicine, New Haven, CT, USA
| | | | - Adam S Kibel
- Department of Urology, Brigham and Women’s Hospital, Boston, MA, USA
| | - Peter A Humphrey
- Department of Pathology, Yale School of Medicine, New Haven, CT, USA
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9
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Evaluation of radiomics and machine learning in identification of aggressive tumor features in renal cell carcinoma (RCC). Abdom Radiol (NY) 2021; 46:4278-4288. [PMID: 33855609 DOI: 10.1007/s00261-021-03083-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/22/2021] [Accepted: 03/31/2021] [Indexed: 12/11/2022]
Abstract
PURPOSE The purpose of this study was to evaluate the use of CT radiomics features and machine learning analysis to identify aggressive tumor features, including high nuclear grade (NG) and sarcomatoid (sarc) features, in large renal cell carcinomas (RCCs). METHODS CT-based volumetric radiomics analysis was performed on non-contrast (NC) and portal venous (PV) phase multidetector computed tomography images of large (> 7 cm) untreated RCCs in 141 patients (46W/95M, mean age 60 years). Machine learning analysis was applied to the extracted radiomics data to evaluate for association with high NG (grade 3-4), with multichannel analysis for NG performed in a subset of patients (n = 80). A similar analysis was performed in a sarcomatoid rich cohort (n = 43, 31M/12F, mean age 63.7 years) using size-matched non-sarcomatoid controls (n = 49) for identification of sarcomatoid change. RESULTS The XG Boost Model performed best on the tested data. After manual and machine feature extraction, models consisted of 3, 7, 5, 10 radiomics features for NC sarc, PV sarc, NC NG and PV NG, respectively. The area under the receiver operating characteristic curve (AUC) for these models was 0.59, 0.65, 0.69 and 0.58 respectively. The multichannel NG model extracted 6 radiomic features using the feature selection strategy and showed an AUC of 0.67. CONCLUSIONS Statistically significant but weak associations between aggressive tumor features (high nuclear grade, sarcomatoid features) in large RCC were identified using 3D radiomics and machine learning analysis.
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10
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Ivey JA, Cortese C, Baird BA, Thiel DD, Lyon TD. Mucinous Tubular and Spindle Cell Carcinoma of the Kidney with Nodal Metastasis Managed with Surgical Resection. EUR UROL SUPPL 2021; 29:10-14. [PMID: 34337528 PMCID: PMC8317836 DOI: 10.1016/j.euros.2021.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2021] [Indexed: 11/16/2022] Open
Abstract
Mucinous tubular and spindle cell carcinoma (MTSCC) is a rare renal malignancy that usually follows an indolent course. The few existing reports of metastatic MTSCC show poor response to systemic therapy. Here we describe the unusual case of a 39-yr-old male with MTSCC presenting as a large renal mass with bulky retroperitoneal lymphadenopathy managed with complete resection of disease. He has remained free of recurrence for 1 yr postoperatively. On the basis of the experience reported here, aggressive surgical resection of MTSCC with isolated nodal metastases may be considered for similar patients in the future given the historically poor response rates to systemic therapy.
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Affiliation(s)
| | - Cherise Cortese
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL, USA
| | - Bryce A Baird
- Department of Urology, Mayo Clinic, Jacksonville, FL, USA
| | - David D Thiel
- Department of Urology, Mayo Clinic, Jacksonville, FL, USA
| | - Timothy D Lyon
- Department of Urology, Mayo Clinic, Jacksonville, FL, USA
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11
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Comparison of CT Texture Analysis Software Platforms in Renal Cell Carcinoma: Reproducibility of Numerical Values and Association With Histologic Subtype Across Platforms. AJR Am J Roentgenol 2021; 216:1549-1557. [PMID: 33852332 DOI: 10.2214/ajr.20.22823] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE. The purpose of this article is to evaluate interobserver, intraobserver, and interplatform variability and compare the previously established association between texture metrics and tumor histologic subtype using three commercially available CT texture analysis (CTTA) software platforms on the same dataset of large (> 7 cm) renal cell carcinomas (RCCs). MATERIALS AND METHODS. CT-based texture analysis was performed on contrast-enhanced MDCT images of large (> 7 cm) untreated RCCs in 124 patients (median age, 62 years; 82 men and 42 women) using three different software platforms. Using this previously studied cohort, texture features were compared across platforms. Features were correlated with histologic subtype, and strength of association was compared between platforms. Single-slice and volumetric measures from one platform were compared. Values for interobserver and intraobserver variability on a tumor subset (n = 30) were assessed across platforms. RESULTS. Metrics including mean gray-level intensity, SD, and volume correlated fairly well across platforms (concordance correlation coefficient [CCC], 0.66-0.99; mean relative difference [MRD], 0.17-5.97%). Entropy showed high variability (CCC, 0.04; MRD, 44.5%). Mean, SD, mean of positive pixels (MPP), and entropy were associated with clear cell histologic subtype on almost all platforms (p < .05). Mean, SD, entropy, and MPP were highly reproducible on most platforms on both interobserver and intraobserver analysis. CONCLUSION. Select texture metrics were reproducible across platforms and readers, but other metrics were widely variable. If clinical models are developed that use CTTA for medical decision making, these differences in reproducibility of some features across platforms need to be considered, and standardization is critical for more widespread adaptation and implementation.
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12
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Lim JU, Oh J, Kim HW, Ban WH, Park ES, Ha JH, Kim JS, Lee SH. Factors associated with discrepancy between fresh frozen and permanent biopsy from medical thoracoscopy: single center analysis of 172 medical flexible thoracoscopy cases. J Thorac Dis 2020; 12:7164-7173. [PMID: 33447405 PMCID: PMC7797841 DOI: 10.21037/jtd-20-1809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Frozen sections prepared during medical thoracoscopy (MT) have precise diagnostic ability in pleural pathology and may assist in decision-making before pleurodesis. The present study evaluated the diagnostic sensitivity of frozen sections from flex-rigid MT, and further evaluated clinical parameters for their association with a discrepancy between frozen sections and permanent paraffin sections. Methods This retrospective study evaluated 172 patients who underwent flex-rigid MT between February 2017 and November 2019 at Incheon Saint Mary's Hospital. Results Of the 172 patients, 85 were pathologically diagnosed with malignancy based on permanent paraffin sections. An accurate diagnosis by fresh frozen section was feasible in 88.2% of the cases compared to the permanent paraffin sections. Among the 85 patients, 75 had malignancies in frozen sections, while 10 patients showed otherwise. In the 85 malignant cases, age, sex, the volume of effusion, thoracoscopic findings, as well as the final pathological diagnosis (lung vs. non-lung origin) were included in univariate analysis for an association with non-malignant frozen section results. High adhesion grade and malignancy other than lung cancer were significant factors associated with frozen section negative cases in a multivariable analysis. Conclusions Taking fresh frozen sections during MT using a flex-rigid bronchoscope is a useful diagnostic modality with reliable sensitivity for malignancy. However, if the pre-procedural diagnosis is likely to be a malignancy other than lung cancer, and if severe adhesions are present in the pleural cavity, the final pathological confirmation should be determined based on permanent paraffin sections, not only on fresh frozen sections.
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Affiliation(s)
- Jeong Uk Lim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jongyeol Oh
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyung Woo Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Woo Ho Ban
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Eun Su Park
- Department of Pathology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jick Hwan Ha
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ju Sang Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sang Haak Lee
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Blum KA, Gupta S, Tickoo SK, Chan TA, Russo P, Motzer RJ, Karam JA, Hakimi AA. Sarcomatoid renal cell carcinoma: biology, natural history and management. Nat Rev Urol 2020; 17:659-678. [PMID: 33051619 PMCID: PMC7551522 DOI: 10.1038/s41585-020-00382-9] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2020] [Indexed: 12/24/2022]
Abstract
Sarcomatoid dedifferentiation is an uncommon feature that can occur in most histological subtypes of renal cell carcinomas (RCCs) and carries a decidedly poor prognosis. Historically, conventional treatments for sarcomatoid RCCs (sRCCs) have shown little efficacy, and median survival is commonly 6–13 months. Despite being first described in 1968, the mechanisms driving sarcomatoid dedifferentiation remain poorly understood, and information and treatment options available to physicians and patients are limited. When diagnosed at an early stage, surgical intervention remains the treatment of choice. However, preoperative identification through routine imaging or biopsy is unreliable and most patients present with advanced disease and systemic symptoms. For these patients, the role of cytoreductive nephrectomy is disputed. The expansion of immunotherapies approved for RCCs has generated a search for biomarkers that might be indicative of treatment response in sRCCs, although a proven effective systemic agent remains elusive. PDL1 expression is increased in sarcomatoid dedifferentiated renal tumours, which suggests that patients with sRCCs could benefit from PD1 and/or PDL1 immune checkpoint blockade therapy. Treatment outcomes for sarcomatoid tumours have remained relatively consistent compared with other RCCs, but further investigation of the tumour–immune cell microenvironment might yield insights into further therapeutic possibilities. In this Review, Blum et al. summarize the current knowledge on sarcomatoid renal cell carcinoma, a diagnosis characterized by the presence of sarcomatoid dedifferentiation and a poor prognosis. They discuss the origin, presentation, molecular biology and treatment of this disease. Sarcomatoid dedifferentiation is not considered to be a unique histological subtype of renal cell carcinomas (RCCs); rather, it can be present within any subtype of RCCs. Sarcomatoid dedifferentiation appears in ~4% of all RCCs, but is present in ~20% of all metastatic RCCs. According to WHO guidelines, any RCC with sarcomatoid dedifferentiation is a WHO–International Society of Urological Pathology grade 4 lesion. Sarcomatoid dedifferentiation is often heterogeneously present within RCCs, making routine imaging and biopsy unreliable for preoperative detection. Surgical resection for localized disease is the standard of care, with subsequent close monitoring of patients following surgery. In patients with metastatic disease, conventional therapies such as surgery and systemic agents have been ineffective and overall 5-year survival remains at 23.5–33%. Previous genomic analyses have failed to identify definitive mutational drivers of disease. However, sarcomatoid RCCs (sRCCs) have been shown to have higher PD1 and PDL1 expression than other subtypes of RCCs. Newer combinations of immune checkpoint inhibitor immunotherapies could yield improved responses and outcomes. Studies investigating sRCCs are limited by patient numbers owing to the low incidence of sRCCs and their advanced stage at presentation. Multi-institutional efforts to establish a consensus on treatment recommendations based on highly powered data are essential.
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Affiliation(s)
- Kyle A Blum
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sounak Gupta
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Satish K Tickoo
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Timothy A Chan
- Department of Radiation Oncology, Immunogenomics and Precision Oncology Platform, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Paul Russo
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Robert J Motzer
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jose A Karam
- Departments of Urology and Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - A Ari Hakimi
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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14
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Cytoreductive Nephrectomy in Patients Presenting With Advanced Disease: Have We Finally Answered the Question? ACTA ACUST UNITED AC 2020; 26:382-389. [PMID: 32947306 DOI: 10.1097/ppo.0000000000000470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Determining the appropriate patients for cytoreductive nephrectomy (CN) has evolved with the integration of more effective systemic therapies for patients with metastatic renal cell carcinoma (mRCC). While previously considered to be first-line therapy for mRCC, CN has not demonstrated a significant survival advantage over systemic therapy in more recent randomized trials when compared with targeted therapy. Conversely, multiple observational studies demonstrate a therapeutic benefit for CN. This review synthesizes the current literature regarding patient selection for CN and further evaluates the role of CN in the current era of immune checkpoint inhibitor therapy. With careful patient selection, CN maintains an important role in the management of mRCC patients.
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15
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Abstract
Radiomics allows for high throughput extraction of quantitative data from images. This is an area of active research as groups try to capture and quantify imaging parameters and convert these into descriptive phenotypes of organs or tumors. Texture analysis is one radiomics tool that extracts information about heterogeneity within a given region of interest. This is used with or without associated machine learning classifiers or a deep learning approach is applied to similar types of data. These tools have shown utility in characterizing renal masses, renal cell carcinoma, and assessing response to targeted therapeutic agents in metastatic renal cell carcinoma.
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Affiliation(s)
- Meghan G Lubner
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, E3/311 Clinical Sciences Center, 600 Highland Avenue, Madison, WI 53792, USA.
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16
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Mir MC, Albiges L, Bex A, Hora M, Giannarini G, Volpe A, Rouprêt M. Management of Metastatic Nonclear Renal Cell Carcinoma: What Are the Options and Challenges? Eur Urol Oncol 2020; 4:843-850. [PMID: 32553707 DOI: 10.1016/j.euo.2020.05.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/08/2020] [Accepted: 05/18/2020] [Indexed: 12/15/2022]
Abstract
This case presents a 68-yr-old female patient with primary metastatic nonclear renal cell carcinoma (RCC) with multiple bone lesions. The patient underwent a single resection of skull bone lesion (diagnostic for poorly differentiated carcinoma of unknown origin) and cytoreductive nephrectomy. The pathology of the kidney specimen demonstrated an oncocytic papillary RCC. Within 3 mo, she developed skeletal progressive disease and was started on systemic therapy (sunitinib). After initial stabilization, bone metastasis progressed during the third cycle of sunitinib and required second-line therapy (cabozantinib). One of the major unmet needs in non-clear cell RCC is the lack of specific systemic therapy. Data on immunotherapy are still limited. Inclusion of these patients in clinical trials is strongly recommended. PATIENT SUMMARY: Patients with metastatic kidney cancer who present with the less common histological subtype (non-clear cell) have poor survival. In this case, the patient responded to second-line therapy. Very few therapies provide response to treatment. Patients should be offered participation in clinical trials testing combinations with immunotherapy.
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Affiliation(s)
- Maria Carmen Mir
- Department of Urology, Fundacion Instituto Valenciano Oncologia, Valencia, Spain.
| | - Laurence Albiges
- Medical Oncology, Gustave Roussy, Universite Paris-Saclay, Villejuif, France
| | - Axel Bex
- The Royal Free London NHS Foundation Trust and UCL Division of Surgery and Interventional Science, London, UK; Department of Urology, The Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Milan Hora
- Department of Urology, Faculty Hospital and Faculty of Medicine in Pilsen, Charles University, Prague, Czech Republic
| | - Gianluca Giannarini
- Urology Unit, Academic Medical Centre "Santa Maria della Misericordia", Udine, Italy
| | - Alessandro Volpe
- Division of Urology, Department of Translational Medicine, Maggiore della Carita Hospital, University of Eastern Piedmont, Novara, Italy
| | - Morgan Rouprêt
- Predictive onco-uro, APHP, Urology, Pitié-Salpêtrière Hospital, Sorbonne University, Paris, France
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Ji B, Li D, Fu S, Zhang Z, Yang T, Wu Y, Zuo Y, Xu Z, Yu N. A Population Study to Identify Candidates for Cytoreductive Nephrectomy in Patients with Metastatic Sarcomatoid Renal Cell Carcinoma from the Surveillance, Epidemiology, and End Results (SEER) Database. Med Sci Monit 2020; 26:e921297. [PMID: 32516796 PMCID: PMC7299061 DOI: 10.12659/msm.921297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND This population study aimed to identify suitable candidates for cytoreductive nephrectomy in patients with metastatic sarcomatoid renal cell carcinoma (RCC) from the US Surveillance, Epidemiology, and End Results (SEER) database. MATERIAL AND METHODS Demographic and clinical data from 1,229 patients with metastatic sarcomatoid RCC were retrieved from the SEER database. Patients were divided into the cytoreductive nephrectomy group (n=937) and the no surgery group (n=292). Multivariate Cox regression analysis identified factors associated with overall survival (OS) and propensity score matching identified factors that significantly impacted the OS. Survival of propensity score-matched subgroups of patients with metastatic sarcomatoid RCC treated by cytoreductive nephrectomy or no surgery was determined by the Kaplan-Meier method and compared by the log-rank test. RESULTS Of the 1,229 patients with metastatic sarcomatoid RCC retrieved from the SEER database, age, tumor size, T stage, and N stage were independent risk factors for patient survival. There were no significant differences in age, N stage, and tumor size between the cytoreductive nephrectomy-treated and non-surgically treated T stage cases following propensity score matching. OS benefits were found in cases with stage T1 (12 months increase), T2 (7.5 months increase), T3a (2 months increase), and T4 (3 months increase), but not in the T3b or T3c subgroups treated by cytoreductive nephrectomy, compared with patients with no surgical treatment. CONCLUSIONS Data from the SEER database showed that cytoreductive nephrectomy improved OS in patients with T1 and T2 metastatic sarcomatoid RCC with a significant long-term survival benefit of >6 months.
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Affiliation(s)
- Bing Ji
- School of Control Science and Engineering, Shandong University, Jinan, Shandong, China (mainland)
| | - Dawei Li
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Shuai Fu
- Shandong Cancer Hospital and Institute, Shandong Academy of Medical Sciences, Jinan, Shandong, China (mainland)
| | - Zhao Zhang
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Tong Yang
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Yaohai Wu
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - You Zuo
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Zhonghua Xu
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Nengwang Yu
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
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Shapiro DD, Karam JA, Wood CG. EDITORIAL COMMENT. Urology 2020; 136:175. [PMID: 32033671 DOI: 10.1016/j.urology.2019.08.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | - Jose A Karam
- The University of Texas, MD Anderson Cancer Center, Houston, TX
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19
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Lavallée LT, McAlpine K, Kapoor A, Pouliot F, Mason R, Violette PD, Bansal RK, Richard PO, Karakiewicz PI, Bhindi B, Maloni R, Pautler S, Lattouf JB, Kassouf W, Tanguay S, So A, Rendon RA, Breau RH. Kidney Cancer Research Network of Canada (KCRNC) consensus statement on the role of renal mass biopsy in the management of kidney cancer. Can Urol Assoc J 2019; 13:377-383. [PMID: 31799919 PMCID: PMC6892686 DOI: 10.5489/cuaj.6176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Luke T. Lavallée
- Division of Urology, University of Ottawa, Ottawa, ON, Canada
- Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada
| | | | - Anil Kapoor
- Departments of Surgery (Urology) and Oncology, McMaster University, Hamilton, ON, Canada
| | - Frédéric Pouliot
- Department of Surgery, Division of Urology, Université Laval, Quebec City, QC, Canada
| | - Ross Mason
- Department of Urology, Dalhousie University, Halifax, NS, Canada
| | - Philippe D. Violette
- Departments of Health Research Methods Evidence and Impact and Surgery, McMaster University, Hamilton, ON, Canada
| | - Rahul K. Bansal
- Department of Surgery, University of Manitoba, Winnipeg, MB, Canada
| | | | | | - Bimal Bhindi
- Department of Surgery, Section of Urology, University of Calgary, Calgary, AB, Canada
| | | | - Stephen Pautler
- Department of Surgery, Division of Urology, Western University, London, ON, Canada
| | | | - Wassim Kassouf
- Department of Surgery, Division of Urology, McGill University, Montreal, QC, Canada
| | - Simon Tanguay
- Department of Surgery, Division of Urology, McGill University, Montreal, QC, Canada
| | - Alan So
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | | | - Rodney H. Breau
- Division of Urology, University of Ottawa, Ottawa, ON, Canada
- Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada
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Diagnostic Yield and Complication Rate in Percutaneous Needle Biopsy of Renal Hilar Masses With Comparison With Renal Cortical Mass Biopsies in a Cohort of 195 Patients. AJR Am J Roentgenol 2019; 212:570-575. [PMID: 30645159 DOI: 10.2214/ajr.18.20221] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The objective of this study was to compare diagnostic yield and complication rate in needle biopsy (NB) of renal hilar and cortical masses. MATERIALS AND METHODS With institutional review board approval, we retrospectively studied 195 patients (120 men, 75 women; mean age ± SD, 67 ± 13 years old) who underwent ultrasound-guided renal mass NB between January 2013 and December 2017. Operator years of experience, biopsy technique (coaxial or successive), needle gauge (22-gauge fine-needle aspiration, 18-gauge core-needle, or both), number of passes, postprocedural complication, and histopathologic diagnoses were recorded. A radiologist who was blinded to histopathologic diagnoses recorded mass location (upper pole, interpolar region, lower pole) and percentage of hilar involvement. Comparisons were performed using independent t and chi-square tests. RESULTS Of the masses biopsied, 5.6% (11/195) were 100% hilar (mean hilar involvement, 20.8% ± 29.8%; range, 0-100%). Mean lesion size was 44 ± 27 mm (range, 12-157 mm). NB diagnosis was established in 84.6% (165/195) of masses, and 15.4% (30/195) of biopsies were inconclusive, with no association with size (p = 0.55) or percentage of hilar involvement (p = 0.756). In the purely hilar masses, diagnosis was established in 72.7% (8/11) compared with 85.3% (157/184) with any cortical involvement (p = 0.265). There was no association between diagnosis and operator years of experience, biopsy technique, needle gauge, or number of passes (p > 0.05). Bleeding occurred after biopsy in 7.7% (15/195) of cases, was associated with percentage of hilar involvement (39.3% ± 44.9% vs 19.3% ± 27.8%; p = 0.012), and was more common in purely hilar masses (36.4% [4/11] vs 5.6% [11/195]; p < 0.001). Complications were not associated with any other feature (p > 0.05). CONCLUSION Percutaneous biopsy of renal hilar masses is technically feasible with diagnostic yield similar to that of cortical masses but with postprocedural bleeding more often than what is seen with cortical masses.
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Herrera-Caceres JO, Finelli A, Jewett MAS. Renal tumor biopsy: indicators, technique, safety, accuracy results, and impact on treatment decision management. World J Urol 2018; 37:437-443. [DOI: 10.1007/s00345-018-2373-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 06/08/2018] [Indexed: 12/11/2022] Open
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Wang L. Microwave Sensors for Breast Cancer Detection. SENSORS (BASEL, SWITZERLAND) 2018; 18:E655. [PMID: 29473867 PMCID: PMC5854976 DOI: 10.3390/s18020655] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 02/18/2018] [Accepted: 02/20/2018] [Indexed: 12/31/2022]
Abstract
Breast cancer is the leading cause of death among females, early diagnostic methods with suitable treatments improve the 5-year survival rates significantly. Microwave breast imaging has been reported as the most potential to become the alternative or additional tool to the current gold standard X-ray mammography for detecting breast cancer. The microwave breast image quality is affected by the microwave sensor, sensor array, the number of sensors in the array and the size of the sensor. In fact, microwave sensor array and sensor play an important role in the microwave breast imaging system. Numerous microwave biosensors have been developed for biomedical applications, with particular focus on breast tumor detection. Compared to the conventional medical imaging and biosensor techniques, these microwave sensors not only enable better cancer detection and improve the image resolution, but also provide attractive features such as label-free detection. This paper aims to provide an overview of recent important achievements in microwave sensors for biomedical imaging applications, with particular focus on breast cancer detection. The electric properties of biological tissues at microwave spectrum, microwave imaging approaches, microwave biosensors, current challenges and future works are also discussed in the manuscript.
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Affiliation(s)
- Lulu Wang
- Department of Biomedical Engineering, School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China.
- Institute of Biomedical Technologies, Auckland University of Technology, Auckland 1142, New Zealand.
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López JI, Angulo JC. Pathological Bases and Clinical Impact of Intratumor Heterogeneity in Clear Cell Renal Cell Carcinoma. Curr Urol Rep 2018; 19:3. [PMID: 29374850 DOI: 10.1007/s11934-018-0754-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW Intratumor heterogeneity is an inherent event in tumor development that is receiving much attention in the last years since it is responsible for most failures of current targeted therapies. The purpose of this review is to offer clinicians an updated insight of the multiple manifestations of a complex event that impacts significantly patient's life. RECENT FINDINGS Clear cell renal cell carcinoma is the most common renal tumor and a paradigmatic example of a heterogeneous neoplasm. Next-generation sequencing has demonstrated that intratumor heterogeneity encompasses genetic, epigenetic, and microenvironmental variability. Currently accepted protocols of tumor sampling seem insufficient in unveiling intratumor heterogeneity with reliability and need to be updated. This variability challenges the precise morphological diagnosis, its molecular characterization, and the selection of optimal personalized therapies in clear cell renal cell carcinoma, a neoplasm traditionally considered chemo- and radio-resistant. We review the state of the art of the different approaches to intratumor heterogeneity in clear cell renal cell carcinomas, from the simple morphology to the most sophisticated massive sequencing tools.
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Affiliation(s)
- José I López
- Department of Pathology, Cruces University Hospital, Biocruces Research Institute, University of the Basque Country (UPV/EHU), 48903, Barakaldo, Spain.
| | - Javier C Angulo
- Clinical Department, Urology, Hospital Universitario de Getafe, Universidad Europea de Madrid, 28905, Madrid, Spain
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Mouallem NE, Smith SC, Paul AK. Sarcomatoid renal cell carcinoma: Biology and treatment advances. Urol Oncol 2018; 36:265-271. [PMID: 29306556 DOI: 10.1016/j.urolonc.2017.12.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 10/22/2017] [Accepted: 12/18/2017] [Indexed: 01/06/2023]
Abstract
Sarcomatoid transformation in renal cell carcinoma, so called sacromatoid RCC (sRCC), is associated with an aggressive behavior and a poor prognosis. Current therapeutic approaches are largely ineffective. Recent studies looking into the genomic and molecular characterization of sRCCs have provided insights into the biology and pathogenesis of this entity. These advances in molecular signatures may help development of effective treatment strategies. We herein present a review of recent developments in the pathology, biology, and treatment modalities in sRCC.
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Affiliation(s)
- Nemer El Mouallem
- Division of Hematology, Oncology and Palliative Care, Massey Cancer Center, VCU Medical Center, Virginia Commonwealth University, Richmond, VA
| | - Steven C Smith
- Department of Pathology, Massey Cancer Center, VCU Medical Center, Virginia Commonwealth University, Richmond, VA
| | - Asit K Paul
- Division of Hematology, Oncology and Palliative Care, Massey Cancer Center, VCU Medical Center, Virginia Commonwealth University, Richmond, VA.
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25
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Wang L. Early Diagnosis of Breast Cancer. SENSORS 2017; 17:s17071572. [PMID: 28678153 PMCID: PMC5539491 DOI: 10.3390/s17071572] [Citation(s) in RCA: 177] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 06/23/2017] [Accepted: 07/01/2017] [Indexed: 12/24/2022]
Abstract
Early-stage cancer detection could reduce breast cancer death rates significantly in the long-term. The most critical point for best prognosis is to identify early-stage cancer cells. Investigators have studied many breast diagnostic approaches, including mammography, magnetic resonance imaging, ultrasound, computerized tomography, positron emission tomography and biopsy. However, these techniques have some limitations such as being expensive, time consuming and not suitable for young women. Developing a high-sensitive and rapid early-stage breast cancer diagnostic method is urgent. In recent years, investigators have paid their attention in the development of biosensors to detect breast cancer using different biomarkers. Apart from biosensors and biomarkers, microwave imaging techniques have also been intensely studied as a promising diagnostic tool for rapid and cost-effective early-stage breast cancer detection. This paper aims to provide an overview on recent important achievements in breast screening methods (particularly on microwave imaging) and breast biomarkers along with biosensors for rapidly diagnosing breast cancer.
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Affiliation(s)
- Lulu Wang
- School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China.
- Institute of Biomedical Technologies, Auckland University of Technology, Auckland 1142, New Zealand.
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Shinder BM, Rhee K, Farrell D, Farber NJ, Stein MN, Jang TL, Singer EA. Surgical Management of Advanced and Metastatic Renal Cell Carcinoma: A Multidisciplinary Approach. Front Oncol 2017; 7:107. [PMID: 28620578 PMCID: PMC5449498 DOI: 10.3389/fonc.2017.00107] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 05/08/2017] [Indexed: 12/12/2022] Open
Abstract
The past decade has seen a rapid proliferation in the number and types of systemic therapies available for renal cell carcinoma. However, surgery remains an integral component of the therapeutic armamentarium for advanced and metastatic kidney cancer. Cytoreductive surgery followed by adjuvant cytokine-based immunotherapy (predominantly high-dose interleukin 2) has largely given way to systemic-targeted therapies. Metastasectomy also has a role in carefully selected patients. Additionally, neoadjuvant systemic therapy may increase the feasibility of resecting the primary tumor, which may be beneficial for patients with locally advanced or metastatic disease. Several prospective trials examining the role of adjuvant therapy are underway. Lastly, the first immune checkpoint inhibitor was approved for metastatic renal cell carcinoma (mRCC) in 2015, providing a new treatment mechanism and new opportunities for combining systemic therapy with surgery. This review discusses current and historical literature regarding the surgical management of patients with advanced and mRCC and explores approaches for optimizing patient selection.
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Affiliation(s)
- Brian M Shinder
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, United States
| | - Kevin Rhee
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, United States
| | - Douglas Farrell
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, United States
| | - Nicholas J Farber
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, United States
| | - Mark N Stein
- Division of Medical Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, United States
| | - Thomas L Jang
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, United States
| | - Eric A Singer
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, United States
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Kutikov A, Uzzo RG, Smaldone MC, Haifler M, Bratslavsky G, Leibovich BC. Reply to Patrick O. Richard, Micheal A.S. Jewett and Antonio Finelli's Letter to the Editor re: Alexander Kutikov, Marc C. Smaldone, Robert G. Uzzo, Miki Haifler, Gennady Bratslavsky, Bradley C. Leibovich. Renal Mass Biopsy: Always, Sometimes, or Never? Eur Urol 2016;70:403–6. Eur Urol 2017; 71:e47-e48. [DOI: 10.1016/j.eururo.2016.07.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Accepted: 07/06/2016] [Indexed: 11/29/2022]
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Percutaneous biopsy in large, locally advanced or metastatic renal tumors. Urol Oncol 2016; 35:87-91. [PMID: 27889280 DOI: 10.1016/j.urolonc.2016.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/30/2016] [Accepted: 10/03/2016] [Indexed: 01/08/2023]
Abstract
INTRODUCTION The role of percutaneous biopsy to characterize large, locally advanced and metastatic primary renal tumors has not been well described. The goal of this article is to describe the potential advantages of biopsy for preoperative evaluation of patients with large renal tumors and advanced disease. METHODS Literature was reviewed for percutaneous biopsy and for locally advanced and metastatic renal tumors. RESULTS Multiple studies have confirmed that percutaneous biopsy is safe, and the cost is minimal relative to the cost of surgical operation. Biopsy of large masses should obtain multiple core samples from several sites with tumors to decrease error from sampling heterogeneous tumors. CONCLUSIONS Potential advantages of biopsy for large renal masses include identification of patients for retroperitoneal lymph node dissection who may have occult lymph node metastasis. In patients with metastatic renal cell carcinoma, biopsy characterizes tumors for patients who may not benefit from cytoreductive surgical operation. The role of biopsy is likely to expand in the future with the development of advanced molecular tools for risk stratification.
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Editorial Comment. Urology 2016; 96:113. [DOI: 10.1016/j.urology.2016.06.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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Psutka SP, Cheville JC, Costello BA, Stewart-Merrill SB, Lohse CM, Leibovich BC, Boorjian SA, Thompson RH. Concordance of Pathologic Features Between Metastatic Sites and the Primary Tumor in Surgically Resected Metastatic Renal Cell Carcinoma. Urology 2016; 96:106-113. [DOI: 10.1016/j.urology.2016.06.061] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/13/2016] [Accepted: 06/15/2016] [Indexed: 01/21/2023]
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CT Textural Analysis of Large Primary Renal Cell Carcinomas: Pretreatment Tumor Heterogeneity Correlates With Histologic Findings and Clinical Outcomes. AJR Am J Roentgenol 2016; 207:96-105. [PMID: 27145377 DOI: 10.2214/ajr.15.15451] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE The purpose of the present study is to determine whether CT texture features of newly diagnosed primary renal cell carcinomas (RCCs) correlate with pathologic features and oncologic outcomes. MATERIALS AND METHODS CT texture analysis was performed on large (> 7 cm; mean size, 9.9 cm) untreated RCCs in 157 patients (52 women and 105 men; mean age, 60.3 years). Measures of tumor heterogeneity, including entropy, kurtosis, skewness, mean, mean of positive pixels, and SD of pixel distribution histogram were derived from multiphasic CT using various filter settings: unfiltered (spatial scaling factor, 0), fine (spatial scaling factor, 2), medium (spatial scaling factor, 3-4), or coarse (spatial scaling factor, 5-6). Texture values were correlated with histologic subtype, nuclear grade, pathologic stage, and clinical outcome. RESULTS When a coarse filter setting (spatial scaling factor, 6) was used, entropy on portal venous phase CT images was positively associated with clear cell histologic findings (odds ratio [OR], 134; 95% CI, 16-1110; p < 0.001) and was negatively associated with non-clear cell subtype findings (papillary spatial scale factor, 6; OR, 0.016; 95% CI, 0.002-0.132; p < 0.001). ROC curve analysis for entropy (on portal venous phase images obtained with a spatial scaling factor of 6) revealed an AUC of 0.943 (95% CI, 0.892-0.993) for clear cell histologic findings, with similar values noted for non-clear cell histologic findings. The mean of positive pixels and the SD of the pixel distribution histogram were statistically significantly associated with histologic cell type in a similar fashion. Entropy, the SD of the pixel distribution histogram, and the mean of positive pixels were associated with nuclear grade, most prominently when fine or medium texture filters were used (p < 0.05). There was a statistically significant association of texture features noted on unenhanced CT, including the SD of the pixel distribution histogram, the mean of positive pixels, and entropy, with the time to disease recurrence and death due to disease (e.g., for entropy noted on unenhanced CT images obtained with a spatial scaling factor of 6, the hazard ratio was 3.49 [95% CI, 1.55-7.84]; p = 0.002). CONCLUSION CT texture features (in particular, entropy, the mean of positive pixels, and the SD of the pixel distribution histogram) are associated with tumor histologic findings, nuclear grade, and outcome measures. The contrast phase does seem to affect heterogeneity measures.
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von Rundstedt FC, Mata DA, Kryvenko ON, Roth S, Degener S, Dreger NM, Goedde D, Assaid A, Kamper L, Haage P, Stoerkel S, Lazica DA. Diagnostic Accuracy of Renal Mass Biopsy. Int J Surg Pathol 2016; 24:213-8. [DOI: 10.1177/1066896915625178] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We investigated the diagnostic accuracy of renal mass biopsy in an ex vivo model, as well as compared the agreement of the preoperative radiological diagnosis with the final pathologic diagnosis. Two 18-gauge needle-core and 2 vacuum-needle biopsies were performed ex vivo from the tumors of 100 consecutive patients undergoing radical nephrectomy between 2006 and 2010. The median tumor size was 5.5 cm. There was no significant difference with regard to cylinder length or tissue quality between the sampling methods. At least 1 of 4 needle cores contained diagnostic tissue in 88% of patients. Biopsy specimens identified clear cell (54%), papillary (13%), or chromophobe (5%) renal cell carcinoma; urothelial carcinoma (6%); oncocytoma (5%); liposarcoma (1%); metastatic colorectal carcinoma (1%); squamous cell carcinoma (1%); unclassified renal cell neoplasm (1%); and no tumor sampled (12%). The sensitivity of the biopsy for accurately determining the diagnosis was 88% (95% CI: 79% to 93%). The specificity was 100% (95% CI: 17% to 100%). Biopsy grade correlated strongly with final pathology (83.5% agreement). There was no difference in average tumor size in cases with the same versus higher grade on final pathology (5.87 vs 5.97; P = .87). Appraisal of tumor histology by radiology agreed with the pathologic diagnosis in 68% of cases. Provided that the biopsy samples the tumor tissue in a renal mass, pathologic analysis is of great diagnostic value in respect of grade and tumor type and correlates well with excisional pathology. This constitutes strong ground for increasingly used renal mass biopsy in patients considering active surveillance or ablation therapy.
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Affiliation(s)
- Friedrich-Carl von Rundstedt
- Baylor College of Medicine, Houston, TX, USA
- Helios Medical Center, Witten/Herdecke University, Wuppertal, Germany
| | | | | | - Stephan Roth
- Helios Medical Center, Witten/Herdecke University, Wuppertal, Germany
| | - Stephan Degener
- Helios Medical Center, Witten/Herdecke University, Wuppertal, Germany
| | | | - Daniel Goedde
- Helios Medical Center, Witten/Herdecke University, Wuppertal, Germany
| | - Ahmed Assaid
- Helios Medical Center, Witten/Herdecke University, Wuppertal, Germany
| | - Lars Kamper
- Helios Medical Center, Witten/Herdecke University, Wuppertal, Germany
| | - Patrick Haage
- Helios Medical Center, Witten/Herdecke University, Wuppertal, Germany
| | - Stephan Stoerkel
- Helios Medical Center, Witten/Herdecke University, Wuppertal, Germany
| | - David A. Lazica
- Helios Medical Center, Witten/Herdecke University, Wuppertal, Germany
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Abel EJ, Heckman JE, Hinshaw L, Best S, Lubner M, Jarrard DF, Downs TM, Nakada SY, Lee FT, Huang W, Ziemlewicz T. Multi-Quadrant Biopsy Technique Improves Diagnostic Ability in Large Heterogeneous Renal Masses. J Urol 2015; 194:886-91. [DOI: 10.1016/j.juro.2015.03.106] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2015] [Indexed: 01/04/2023]
Affiliation(s)
- E. Jason Abel
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Jennifer E. Heckman
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Louis Hinshaw
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Sara Best
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Meghan Lubner
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - David F. Jarrard
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Tracy M. Downs
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Stephen Y. Nakada
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Fred T. Lee
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Wei Huang
- Department of Pathology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Timothy Ziemlewicz
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
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Blute ML, Drewry A, Abel EJ. Percutaneous biopsy for risk stratification of renal masses. Ther Adv Urol 2015; 7:265-74. [PMID: 26425141 DOI: 10.1177/1756287215585273] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The increased use of abdominal imaging has led to identification of more patients with incidental renal masses, and renal mass biopsy (RMB) has become a popular method to evaluate unknown renal masses prior to definitive treatment. Pathologic data obtained from biopsy may be used to guide decisions for treatment and may include the presence or absence of malignant tumor, renal cell cancer subtype, tumor grade and the presence of other aggressive pathologic features. However, prior to using RMB for risk stratification, it is important to understand whether RMB findings are equivalent to pathologic analysis of surgical specimens and to identify any potential limitations of this approach. This review outlines the advantages and limitations of the current studies that evaluate RMB as a guide for treatment decision in patients with unknown renal masses. In multiple series, RMB has demonstrated low morbidity and a theoretical reduction in cost, if patients with benign tumors are identified from biopsy and can avoid subsequent treatment. However, when considering the routine use of RMB for risk stratification, it is important to note that biopsy may underestimate risk in some patients by undergrading, understaging or failing to identify aggressive tumor features. Future studies should focus on developing treatment algorithms that integrate RMB to identify the optimal use in risk stratification of patients with unknown renal masses.
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Affiliation(s)
- Michael L Blute
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Anna Drewry
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Edwin Jason Abel
- Assistant Professor, Department of Urology, University of Wisconsin School of Medicine and Public Health, 1685 Highland Avenue, Madison, WI 53705-2281, USA
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Delahunt B, Samaratunga H, Martignoni G, Srigley JR, Evans AJ, Brunelli M. Percutaneous renal tumour biopsy. Histopathology 2015; 65:295-308. [PMID: 25041600 DOI: 10.1111/his.12495] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The use of percutaneous renal tumour biopsy (RTB) as a diagnostic tool for the histological characterization of renal masses has increased dramatically within the last 30 years. This increased utilization has paralleled advances in imaging techniques and an evolving knowledge of the clinical value of nephron sparing surgery. Improved biopsy techniques using image guidance, coupled with the use of smaller gauge needles has led to a decrease in complication rates. Reports from series containing a large number of cases have shown the non-diagnostic rate of RTB to range from 4% to 21%. Re-biopsy has been shown to reduce this rate, while the use of molecular markers further improves diagnostic sensitivity. In parallel with refinements of the biopsy procedure, there has been a rapid expansion in our understanding of the complexity of renal cell neoplasia. The 2013 Vancouver Classification is the current classification for renal tumours, and contains five additional entities recognized as novel forms of renal malignancy. The diagnosis of tumour morphotype on RTB is usually achievable on routine histology; however, immunohistochemical studies may be of assistance in difficult cases. The morphology of the main tumour subtypes, based upon the Vancouver Classification, is described and differentiating features are discussed.
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Affiliation(s)
- Brett Delahunt
- Department of Pathology and Molecular Medicine, Wellington School of Medicine and Health Sciences, Wellington, New Zealand
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Boorjian S. Commentary on "Effects on survival of BAP1 and PBRM1 mutations in sporadic clear-cell renal-cell carcinoma: a retrospective analysis with independent validation." Kapur P, Peña-Llopis S, Christie A, Zhrebker L, Pavía-Jiménez A, Rathmell WK, Xie XJ, Brugarolas J. Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX. Lancet Oncol 2013; 14(2):159-67. [Epub 2013 Jan 16]. doi: 10.1016/S1470-2045(12)70584-3. Urol Oncol 2015; 32:934-5. [PMID: 25087671 DOI: 10.1016/j.urolonc.2014.01.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND Clear-cell renal-cell carcinomas display divergent clinical behaviours. However, the molecular genetic events driving these behaviours are unknown. We discovered that BAP1 is mutated in about 15% of clear-cell renal-cell carcinoma, and that BAP1 and PBRM1 mutations are largely mutually exclusive. The aim of this study was to investigate the clinicopathological significance of these molecular subtypes and to determine whether patients with BAP1-mutant and PBRM1-mutant tumours had different overall survival. METHODS In this retrospective analysis, we assessed 145 patients with primary clear-cell renal-cell carcinoma and defined PBRM1 and BAP1 mutation status from the University of Texas Southwestern Medical Center (UTSW), TX, USA, between 1998 and 2011. We classified patients into those with BAP1-mutant tumours and those with tumours exclusively mutated for PBRM1 (PBRM1-mutant). We used a second independent cohort (n=327) from The Cancer Genome Atlas (TCGA) for validation. In both cohorts, more than 80% of patients had localised or locoregional disease at presentation. Overall both cohorts were similar, although the TCGA had more patients with metastatic and higher-grade disease, and more TCGA patients presented before molecularly targeted therapies became available. FINDINGS The median overall survival in the UTSW cohort was significantly shorter for patients with BAP1-mutant tumours (4·6 years; 95% CI 2·1-7·2), than for patients with PBRM1-mutant tumours (10·6 years; 9·8-11·5), corresponding to a HR of 2·7 (95% CI 0·99-7·6, p=0·044). Median overall survival in the TCGA cohort was 1·9 years (95% CI 0·6-3·3) for patients with BAP1-mutant tumours and 5·4 years (4·0-6·8) for those with PBRM1-mutant tumours. A HR similar to the UTSW cohort was noted in the TCGA cohort (2·8; 95% CI 1·4-5·9; p=0·004). Patients with mutations in both BAP1 and PBRM1, although a minority (three in UTSW cohort and four in TCGA cohort), had the worst overall survival (median 2·1 years, 95% CI 0·3-3·8, for the UTSW cohort, and 0·2 years, 0·0-1·2, for the TCGA cohort). INTERPRETATION Our findings identify mutation-defined subtypes of clear-cell renal-cell carcinoma with distinct clinical outcomes, a high-risk BAP1-mutant group and a favourable PBRM1-mutant group. These data establish the basis for a molecular genetic classification of clear-cell renal-cell carcinoma that could influence treatment decisions in the future. The existence of different molecular subtypes with disparate outcomes should be considered in the design and assessment of clinical studies. FUNDING Cancer Prevention and Research Institution of Texas and National Cancer Institute.
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Merrill MM, Wood CG, Tannir NM, Slack RS, Babaian KN, Jonasch E, Pagliaro LC, Compton Z, Tamboli P, Sircar K, Pisters LL, Matin SF, Karam JA. Clinically nonmetastatic renal cell carcinoma with sarcomatoid dedifferentiation: Natural history and outcomes after surgical resection with curative intent. Urol Oncol 2015; 33:166.e21-9. [PMID: 25700975 DOI: 10.1016/j.urolonc.2014.11.021] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 11/18/2014] [Accepted: 11/27/2014] [Indexed: 12/13/2022]
Abstract
PURPOSE Renal cell carcinoma with sarcomatoid dedifferentiation (sRCC) is an aggressive malignancy associated with a poor prognosis. Although existing literature focuses on patients presenting with metastatic disease, characteristics and outcomes for patients with localized disease are not well described. We aimed to evaluate postnephrectomy characteristics, outcomes, and predictors of survival in patients with sRCC who presented with clinically localized disease. PATIENTS AND METHODS An institutional review board-approved review from 1986 to 2011 identified 77 patients who presented with clinically localized disease, underwent nephrectomy, and had sRCC in their primary kidney tumor. Clinical and pathologic variables were captured for each patient. Overall survival (OS) and recurrence-free survival (RFS) were calculated for all patients and those who had no evidence of disease (NED) following nephrectomy, respectively. Comparisons were made with categorical groupings in proportional hazards regression models for univariable and multivariable analyses. RESULTS OS for the entire cohort (n = 77) at 2 years was 50%. A total of 56 (77%) patients of the 73 who has NED following nephrectomy experienced a recurrence, with a median time to recurrence of 26.2 months. On multivariable analysis, tumor stage, pathologically positive lymph nodes, and year of nephrectomy were significant predictors of both OS and recurrence-free survival. Limitations include the retrospective nature of this study and relatively small sample size. CONCLUSIONS Long-term survival for patients with sRCC, even in clinically localized disease, is poor. Aggressive surveillance of those who have NED following nephrectomy is essential, and further prospective studies evaluating the benefit of adjuvant systemic therapies in this cohort are warranted.
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Affiliation(s)
- Megan M Merrill
- Department of Urology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Christopher G Wood
- Department of Urology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Nizar M Tannir
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Rebecca S Slack
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Kara N Babaian
- Department of Urology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Eric Jonasch
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Lance C Pagliaro
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Zachary Compton
- Department of Urology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Pheroze Tamboli
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Kanishka Sircar
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Louis L Pisters
- Department of Urology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Surena F Matin
- Department of Urology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Jose A Karam
- Department of Urology, The University of Texas MD Anderson Cancer Center, Houston, TX.
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38
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The accuracy of renal tumor biopsy: analysis from a national prospective study. World J Urol 2014; 33:1205-11. [DOI: 10.1007/s00345-014-1432-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 10/23/2014] [Indexed: 12/27/2022] Open
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Zhang BY, Thompson RH, Lohse CM, Leibovich BC, Boorjian SA, Cheville JC, Costello BA. A novel prognostic model for patients with sarcomatoid renal cell carcinoma. BJU Int 2014; 115:405-11. [PMID: 24730416 DOI: 10.1111/bju.12781] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To demonstrate sarcomatoid differentiation is an independent prognostic feature for patients with grade 4 renal cell carcinoma (RCC) with or without distant metastases. To identify independent predictors of survival, evaluate the correlation between the amount of sarcomatoid differentiation and cancer-specific survival (CSS), and to design a multivariate prognostic model for patients with sarcomatoid RCC. PATIENTS AND METHODS We used the Mayo Clinic Nephrectomy Registry to identify 204 post-nephrectomy patients with sarcomatoid-variant RCC, as well as 207 patients with unilateral grade 4 RCC without sarcomatoid features for comparison. All slides were reviewed by one pathologist. CSS was estimated using the Kaplan-Meier method. The associations of clinical and pathological features with death from RCC were evaluated using Cox proportional hazards regression models. RESULTS For all patients with grade 4 RCC, the presence of sarcomatoid differentiation was associated with a 58% increased risk of death from RCC (P < 0.001). For patients with grade 4 non-metastatic (M0) RCC, the presence of sarcomatoid differentiation was associated with an 82% increased risk of death from RCC (P < 0.001). For patients with sarcomatoid RCC, the 2009 primary tumour classifications, presence of regional lymph nodes and distant metastases, coagulative tumour necrosis, and the amount of sarcomatoid differentiation were each significantly associated with death from RCC in a multivariate setting. After adjusting for other prognostic variables, each 10% increase in the amount of sarcomatoid differentiation was associated with a 6% increased risk of death from RCC (P = 0.028). Patients whose tumours contained ≥30% (median amount) sarcomatoid differentiation were 52% more likely to die from RCC compared with patients whose tumours contained <30% sarcomatoid differentiation (hazard ratio 1.52; P = 0.018). CONCLUSIONS Among patients with grade 4 RCC, either with or without distant metastases at surgery, sarcomatoid differentiation is significantly associated with adverse survival in a multivariate setting. We also suggest for the first time that the percentage of sarcomatoid differentiation is an independent prognostic feature in a multivariate setting. The 2009 primary tumour classifications, regional lymph node status, the presence of distant metastases classifications, coagulative tumour necrosis, and the amount of sarcomatoid differentiation are independent predictors of survival for patients with sarcomatoid RCC.
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Affiliation(s)
- Ben Y Zhang
- Department of Oncology, Mayo Clinic, Rochester, MN, USA
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40
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Rendon RA, Kapoor A, Breau R, Leveridge M, Feifer A, Black PC, So A. Surgical management of renal cell carcinoma: Canadian Kidney Cancer Forum Consensus. Can Urol Assoc J 2014; 8:E398-412. [PMID: 25024794 DOI: 10.5489/cuaj.1894] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | - Anil Kapoor
- Department of Surgery, Division of Urology, McMaster University, Hamilton, ON
| | - Rodney Breau
- Division of Urology, University of Ottawa, Ottawa, ON
| | - Michael Leveridge
- Departments of Urology and Oncology, Queen's University, Kingston, ON
| | | | - Peter C Black
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC
| | - Alan So
- Department of Urologic Sciences, University of British Columbia, Vancouver, BC
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41
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Culp SH, Karam JA, Wood CG. Population-based analysis of factors associated with survival in patients undergoing cytoreductive nephrectomy in the targeted therapy era. Urol Oncol 2014; 32:561-8. [DOI: 10.1016/j.urolonc.2013.12.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/09/2013] [Accepted: 12/12/2013] [Indexed: 02/03/2023]
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42
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Kos Z, Williams PA, Belanger EC, Mai KT. Fluorescence in situ hybridization as an adjunct tool in the diagnosis of primary and metastatic renal cell carcinoma in fine needle aspiration specimens. Diagn Cytopathol 2014; 42:1013-23. [DOI: 10.1002/dc.23154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 03/13/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Zuzana Kos
- Pathology and Laboratory Medicine; The Ottawa Hospital and University of Ottawa; Ottawa Ontario Canada
| | - Phillip A. Williams
- Pathology and Laboratory Medicine; The Ottawa Hospital and University of Ottawa; Ottawa Ontario Canada
| | - Eric C. Belanger
- Pathology and Laboratory Medicine; The Ottawa Hospital and University of Ottawa; Ottawa Ontario Canada
| | - Kien T. Mai
- Pathology and Laboratory Medicine; The Ottawa Hospital and University of Ottawa; Ottawa Ontario Canada
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43
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Scanga LR, Maygarden SJ. Utility of fine-needle aspiration and core biopsy with touch preparation in the diagnosis of renal lesions. Cancer Cytopathol 2013; 122:182-90. [DOI: 10.1002/cncy.21371] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 10/03/2013] [Accepted: 10/29/2013] [Indexed: 12/27/2022]
Affiliation(s)
- Lori R. Scanga
- Department of Pathology and Laboratory Medicine; The University of North Carolina at Chapel Hill; Chapel Hill North Carolina
| | - Susan J. Maygarden
- Department of Pathology and Laboratory Medicine; The University of North Carolina at Chapel Hill; Chapel Hill North Carolina
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Lee C, Park JW, Suh JH, Nam KH, Moon KC. Histologic variations and immunohistochemical features of metastatic clear cell renal cell carcinoma. KOREAN JOURNAL OF PATHOLOGY 2013; 47:426-32. [PMID: 24255630 PMCID: PMC3830989 DOI: 10.4132/koreanjpathol.2013.47.5.426] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Revised: 09/25/2013] [Accepted: 09/25/2013] [Indexed: 01/03/2023]
Abstract
BACKGROUND Due to advancements in treatment of metastatic and advanced renal cell carcinoma (RCC), it has become increasingly important to diagnose metastatic RCC and the specific subtype. In this study, we investigated the diverse histologic features of metastatic clear cell renal cell carcinoma (CCRCC) cases in comparison with corresponding primary lesions. METHODS We identified 119 metastatic CCRCC cases from 81 corresponding primary lesions diagnosed between 1995 and 2010 and evaluated the diverse histologic and immunohistochemical features of these lesions. RESULTS A total of 44 primary lesions (54.3%) had a non-clear cell component in addition to a typical clear cell component. Of the 119 metastatic lesions, 63 lesions (52.9%) contained a non-clear cell component, and 29 metastatic lesions were composed of a non-clear cell component only. Rhabdoid features were the most frequent non-clear cell histology among the metastatic lesions. Metastatic CCRCCs mainly showed positive CD10 and epithelial membrane antigen staining and negative cytokeratin 7 staining. CONCLUSIONS Metastatic CCRCC commonly showed a variety of histologic features. If there is a difficulty to diagnose metastatic CCRCC due to a variety of histologic features or small biopsy specimen, histologic review of the primary lesion and immunohistochemical analysis can help determine the correct diagnosis.
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Affiliation(s)
- Cheol Lee
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
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La Rochelle J, Wood C, Bex A. Refining the Use of Cytoreductive Nephrectomy in Metastatic Renal Cell Carcinoma. Semin Oncol 2013; 40:429-35. [DOI: 10.1053/j.seminoncol.2013.05.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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46
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Lim A, O'Neil B, Heilbrun ME, Dechet C, Lowrance WT. The contemporary role of renal mass biopsy in the management of small renal tumors. Front Oncol 2012; 2:106. [PMID: 22973552 PMCID: PMC3437570 DOI: 10.3389/fonc.2012.00106] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Accepted: 08/13/2012] [Indexed: 12/23/2022] Open
Abstract
The selective use of percutaneous biopsy for diagnosis in renal masses is a relatively uncommon approach when compared to the management of other solid neoplasms. With recent advancements in imaging techniques and their widespread use, the incidental discovery of asymptomatic, small renal masses (SRM) is on the rise and a substantial percentage of these SRM are benign. Recent advances in diagnostics have significantly improved accuracy rates of renal mass biopsy (RMB), making it a potentially powerful tool in the management of SRM. In this review, we will discuss the current management of SRM, problems with the traditional view of RMB, improvements in the diagnostic power of RMB, cost-effectiveness of RMB, and risks associated with RMB. RMB may offer important information enabling treating clinicians to better risk-stratify patients and ultimately provide a more personalized treatment approach for SRM.
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Affiliation(s)
- Amy Lim
- MD/PhD Program, University of Utah Salt Lake City, UT, USA
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