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Yin K, Zhao M, Xu Y, Zheng Z, Huang S, Liang D, Dong H, Guo Y, Lin L, Song J, Zhang H, Zheng J, Zhu Z, Yang C. Well-Paired-Seq2: High-Throughput and High-Sensitivity Strategy for Characterizing Low RNA-Content Cell/Nucleus Transcriptomes. Anal Chem 2024; 96:6301-6310. [PMID: 38597061 DOI: 10.1021/acs.analchem.3c05785] [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: 04/11/2024]
Abstract
Single-cell RNA sequencing (scRNA-seq) is a transformative technology that unravels the intricate cellular state heterogeneity. However, the Poisson-dependent cell capture and low sensitivity in scRNA-seq methods pose challenges for throughput and samples with a low RNA-content. Herein, to address these challenges, we present Well-Paired-Seq2 (WPS2), harnessing size-exclusion and quasi-static hydrodynamics for efficient cell capture. WPS2 exploits molecular crowding effect, tailing activity enhancement in reverse transcription, and homogeneous enzymatic reaction in the initial bead-based amplification to achieve 3116 genes and 8447 transcripts with an average of ∼20000 reads per cell. WPS2 detected 1420 more genes and 4864 more transcripts than our previous Well-Paired-Seq. It sensitively characterizes transcriptomes of low RNA-content single cells and nuclei, overcoming the Poisson limit for cell and barcoded bead capture. WPS2 also profiles transcriptomes from frozen clinical samples, revealing heterogeneous tumor copy number variations and intercellular crosstalk in clear cell renal cell carcinomas. Additionally, we provide the first single-cell-level characterization of rare metanephric adenoma (MA) and uncover potential specific markers. With the advantages of high sensitivity and high throughput, WPS2 holds promise for diverse basic and clinical research.
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Affiliation(s)
- Kun Yin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200120, China
| | - Meijuan Zhao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Yiling Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Zhong Zheng
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200120, China
| | - Shanqing Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Dianyi Liang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - He Dong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Ye Guo
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Li Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Jia Song
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200120, China
| | - Huimin Zhang
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361005, China
| | - Junhua Zheng
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200120, China
| | - Zhi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Chaoyong Yang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory for Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
- Institute of Molecular Medicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200120, China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361005, China
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Wang K, Kou Z, Wang J, Hou S. Imaging features of metanephric adenoma: A case report and review of literature. Asian J Surg 2023; 46:5795-5796. [PMID: 37657986 DOI: 10.1016/j.asjsur.2023.08.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 08/24/2023] [Indexed: 09/03/2023] Open
Affiliation(s)
- Kongjia Wang
- Department of Urology, Qingdao Municipal Hospital, Qingdao University, No.5, Donghai Middle Road, Shinan District, Qingdao, Shandong, 266001, China
| | - Zengshun Kou
- Department of Urology, Qingdao Municipal Hospital, Qingdao University, No.5, Donghai Middle Road, Shinan District, Qingdao, Shandong, 266001, China
| | - Ji Wang
- Department of Urology, Qingdao Municipal Hospital, Qingdao University, No.5, Donghai Middle Road, Shinan District, Qingdao, Shandong, 266001, China
| | - Sichuan Hou
- Department of Urology, Qingdao Municipal Hospital, Qingdao University, No.5, Donghai Middle Road, Shinan District, Qingdao, Shandong, 266001, China.
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Hu X, Li W, Bai J, Li D, Wang P, Cai J. Metanephric adenoma in children: A case report and literature review. Oncol Lett 2023; 26:486. [PMID: 37818137 PMCID: PMC10561137 DOI: 10.3892/ol.2023.14073] [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] [Received: 06/25/2023] [Accepted: 09/01/2023] [Indexed: 10/12/2023] Open
Abstract
Metanephric adenoma (MA) is a rare type of benign renal epithelial tumor that can develop at any age. Nonetheless, MA is extremely rare in children and only a few cases have been reported to date. The present study aimed to report the case of a 5-year-old female found to have a mass in the right kidney during a routine pre-enrollment physical examination. Computed tomography (CT) images revealed multiple high-density calcifications in the mass, and contrast-enhanced CT and magnetic resonance imaging demonstrated that the mass was significantly enhanced in the cortical phase and decreased in the medullary phase. Based on these findings, the mass was initially diagnosed as angiomyolipoma before surgery; however, postoperative pathology confirmed the mass to be a MA. MAs are typically a type of soft tissue mass with relatively uniform density or signal, showing delayed enhancement in contrast-enhanced scanning. However, the mass found in the present study presented diffused high-density calcification, which was obvious in the early phase of contrast-enhanced scanning but weakened in the delayed enhancement phase. In conclusion, the present case study demonstrated that MA should be considered as one of the imaging differential diagnoses of fat-poor angiomyolipoma, renal carcinoma and oncocytoma.
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Affiliation(s)
- Xianwen Hu
- Department of Nuclear Medicine, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Wenxin Li
- Department of Nuclear Medicine, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Jie Bai
- Department of Radiology, Shougang Shuigang Hospital, Liupanshui, Guizhou 553000, P.R. China
| | - Dandan Li
- Department of Obstetrics, Zunyi Hospital of Traditional Chinese Medicine, Zunyi, Guizhou 563000, P.R. China
| | - Pan Wang
- Department of Nuclear Medicine, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Jiong Cai
- Department of Nuclear Medicine, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
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Gohla G, Bongers MN, Kaufmann S, Kraus MS. Case Report: MRI, CEUS, and CT Imaging Features of Metanephric Adenoma with Histopathological Correlation and Literature Review. Diagnostics (Basel) 2022; 12:diagnostics12092071. [PMID: 36140473 PMCID: PMC9497561 DOI: 10.3390/diagnostics12092071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 08/08/2022] [Accepted: 08/22/2022] [Indexed: 01/08/2023] Open
Abstract
The metanephric adenoma is an extremely rare, benign, embryonal-epithelial neoplasm of the kidney and has a good prognosis with appropriate treatment. It can present at any age and is often asymptomatic. Histologically, the lesion is well established; however, there have been only a few cases described with available detailed imaging findings, most of them with large renal masses typically depicted by computed tomography (CT). This case report includes imaging of contrast-enhanced MRI, contrast-enhanced ultrasound (CEUS), and CT, and thus adds to the information available, potentially promoting a nephron-sparing clinical pathway. We report on the clinical presentation, imaging, histopathological diagnosis, and treatment data of a 27-year-old female, in whom an incidental, symptomatic kidney tumor was detected. CT, CEUS, and MRI showed a suspicious unifocal renal lesion with inhomogeneous enhancement, which was indistinguishable from renal cell carcinoma. After laparoscopic resection, a metanephric adenoma with microscopically partially glandular, partially nest-like solid growth and without distinctive atypia was diagnosed pathohistologically. Immunohistochemistry results were positive for Wilms Tumor 1 and CD57 and negative for EMA and CK7: 2–3% positive cells in MIB1 coloring. At 3-month and 1-year follow-up, the patient was asymptomatic and imaging showed no recurrence of renal masses or metastases.
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Ooms AH, Vujanić GM, D’Hooghe E, Collini P, L’Herminé-Coulomb A, Vokuhl C, Graf N, van den Heuvel-Eibrink MM, de Krijger RR. Renal Tumors of Childhood-A Histopathologic Pattern-Based Diagnostic Approach. Cancers (Basel) 2020; 12:cancers12030729. [PMID: 32204536 PMCID: PMC7140051 DOI: 10.3390/cancers12030729] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/04/2020] [Accepted: 03/07/2020] [Indexed: 12/15/2022] Open
Abstract
Renal tumors comprise approximately 7% of all malignant pediatric tumors. This is a highly heterogeneous group of tumors, each with its own therapeutic management, outcome, and association with germline predispositions. Histopathology is the key in establishing the correct diagnosis, and therefore pathologists with expertise in pediatric oncology are needed for dealing with these rare tumors. While each tumor shows different histologic features, they do have considerable overlap in cell type and histologic pattern, making the diagnosis difficult to establish, if based on routine histology alone. To this end, ancillary techniques, such as immunohistochemistry and molecular analysis, can be of great importance for the correct diagnosis, resulting in appropriate treatment. To use ancillary techniques cost-effectively, we propose a pattern-based approach and provide recommendations to aid in deciding which panel of antibodies, supplemented by molecular characterization of a subset of genes, are required.
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Affiliation(s)
- Ariadne H.A.G. Ooms
- Princess Máxima Center for pediatric oncology, 3584 CS Utrecht, The Netherlands (M.M.v.d.H.-E.)
- Pathan B.V., 3045 PM Rotterdam, The Netherlands
| | | | - Ellen D’Hooghe
- Department of Pathology, Oslo University Hospital, Rikshospitalet, 0372 Oslo, Norway;
| | - Paola Collini
- Department of Diagnostic Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy;
| | - Aurore L’Herminé-Coulomb
- Sorbonne Université, Department of Pathology, Hôpital Armand Trousseau, Hopitaux Universitaires Est Parisien, 75012 Paris, France;
| | - Christian Vokuhl
- Section of Pediatric Pathology, Department of Pathology, University Hospital Bonn, 53127 Bonn, Germany;
| | - Norbert Graf
- Department of Pediatric Oncology & Hematology, Saarland University, D-66421 Homburg, Germany;
| | | | - Ronald R. de Krijger
- Princess Máxima Center for pediatric oncology, 3584 CS Utrecht, The Netherlands (M.M.v.d.H.-E.)
- Department of Pathology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
- Correspondence: ; Tel.: +31-088-9727272
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6
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Chung EM, Lattin GE, Fagen KE, Kim AM, Pavio MA, Fehringer AJ, Conran RM. Renal Tumors of Childhood: Radiologic-Pathologic Correlation Part 2. The 2nd Decade: From the Radiologic Pathology Archives. Radiographics 2017; 37:1538-1558. [PMID: 28898190 DOI: 10.1148/rg.2017160189] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Malignant renal tumors account for 7% of childhood cancers, and Wilms tumors are by far the most common-but not in older children and adolescents. Among individuals in the latter half of their 2nd decade of life, renal cell carcinoma (RCC) is more common than Wilms tumor. The histopathologic spectrum of RCCs in children differs from that in adults. The most common subtype of RCC in children and adolescents is Xp11.2 translocation RCC, which is distinguished by hyperattenuation at nonenhanced computed tomography, a defined capsule, and associated retroperitoneal lymphadenopathy. Papillary RCC is the second most common histologic subtype. It enhances less intensely compared with the adjacent renal parenchyma and has a propensity for calcification. Clear cell RCC is seen in patients with von Hippel-Lindau disease and is distinguished by its relatively hypervascular nature. Medullary carcinoma affects adolescents with the sickle cell trait and is characterized by an infiltrative growth pattern and extensive metastasis at presentation. Angiomyolipoma is seen in children with tuberous sclerosis complex and is often multifocal and hypervascular, with macroscopic fat. Metanephric tumors are central, circumscribed, and typically calcified. Lymphoma usually manifests as multifocal masses, but it may involve a solitary mass or infiltrative pattern. Extensive adenopathy and involvement of the gastrointestinal tract or other organs also may be seen. Primitive neuroectodermal tumor is an aggressive neoplasm that is typically quite large at diagnosis. Knowledge of the clinical, biologic, and histopathologic features of renal tumors in older children and adolescents and their effects on the imaging appearance can help the radiologist offer a useful preoperative differential diagnosis.
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Affiliation(s)
- Ellen M Chung
- From the Department of Radiology and Radiological Sciences, F. Edward Hébert School of Medicine (A.J.F.), Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd, Bethesda, MD 20814 (E.M.C., G.E.L.); Pediatric Radiology Section (E.M.C.) and Genitourinary Radiology Section (G.E.L.), American Institute for Radiologic Pathology, Silver Spring, Md; Department of Radiology (K.E.F.) and Office of Graduate Medical Education (A.M.K., M.A.P.), Walter Reed National Military Medical Center, Bethesda, Md; and Department of Pathology, Eastern Virginia Medical School, Norfolk, Va (R.M.C.)
| | - Grant E Lattin
- From the Department of Radiology and Radiological Sciences, F. Edward Hébert School of Medicine (A.J.F.), Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd, Bethesda, MD 20814 (E.M.C., G.E.L.); Pediatric Radiology Section (E.M.C.) and Genitourinary Radiology Section (G.E.L.), American Institute for Radiologic Pathology, Silver Spring, Md; Department of Radiology (K.E.F.) and Office of Graduate Medical Education (A.M.K., M.A.P.), Walter Reed National Military Medical Center, Bethesda, Md; and Department of Pathology, Eastern Virginia Medical School, Norfolk, Va (R.M.C.)
| | - Kimberly E Fagen
- From the Department of Radiology and Radiological Sciences, F. Edward Hébert School of Medicine (A.J.F.), Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd, Bethesda, MD 20814 (E.M.C., G.E.L.); Pediatric Radiology Section (E.M.C.) and Genitourinary Radiology Section (G.E.L.), American Institute for Radiologic Pathology, Silver Spring, Md; Department of Radiology (K.E.F.) and Office of Graduate Medical Education (A.M.K., M.A.P.), Walter Reed National Military Medical Center, Bethesda, Md; and Department of Pathology, Eastern Virginia Medical School, Norfolk, Va (R.M.C.)
| | - Andrew M Kim
- From the Department of Radiology and Radiological Sciences, F. Edward Hébert School of Medicine (A.J.F.), Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd, Bethesda, MD 20814 (E.M.C., G.E.L.); Pediatric Radiology Section (E.M.C.) and Genitourinary Radiology Section (G.E.L.), American Institute for Radiologic Pathology, Silver Spring, Md; Department of Radiology (K.E.F.) and Office of Graduate Medical Education (A.M.K., M.A.P.), Walter Reed National Military Medical Center, Bethesda, Md; and Department of Pathology, Eastern Virginia Medical School, Norfolk, Va (R.M.C.)
| | - Michael A Pavio
- From the Department of Radiology and Radiological Sciences, F. Edward Hébert School of Medicine (A.J.F.), Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd, Bethesda, MD 20814 (E.M.C., G.E.L.); Pediatric Radiology Section (E.M.C.) and Genitourinary Radiology Section (G.E.L.), American Institute for Radiologic Pathology, Silver Spring, Md; Department of Radiology (K.E.F.) and Office of Graduate Medical Education (A.M.K., M.A.P.), Walter Reed National Military Medical Center, Bethesda, Md; and Department of Pathology, Eastern Virginia Medical School, Norfolk, Va (R.M.C.)
| | - Adam J Fehringer
- From the Department of Radiology and Radiological Sciences, F. Edward Hébert School of Medicine (A.J.F.), Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd, Bethesda, MD 20814 (E.M.C., G.E.L.); Pediatric Radiology Section (E.M.C.) and Genitourinary Radiology Section (G.E.L.), American Institute for Radiologic Pathology, Silver Spring, Md; Department of Radiology (K.E.F.) and Office of Graduate Medical Education (A.M.K., M.A.P.), Walter Reed National Military Medical Center, Bethesda, Md; and Department of Pathology, Eastern Virginia Medical School, Norfolk, Va (R.M.C.)
| | - Richard M Conran
- From the Department of Radiology and Radiological Sciences, F. Edward Hébert School of Medicine (A.J.F.), Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd, Bethesda, MD 20814 (E.M.C., G.E.L.); Pediatric Radiology Section (E.M.C.) and Genitourinary Radiology Section (G.E.L.), American Institute for Radiologic Pathology, Silver Spring, Md; Department of Radiology (K.E.F.) and Office of Graduate Medical Education (A.M.K., M.A.P.), Walter Reed National Military Medical Center, Bethesda, Md; and Department of Pathology, Eastern Virginia Medical School, Norfolk, Va (R.M.C.)
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Large Cystic Metanephric Adenoma in a 15-Year-Old Girl. Urology 2017; 101:147-150. [DOI: 10.1016/j.urology.2016.12.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/07/2016] [Accepted: 12/12/2016] [Indexed: 11/20/2022]
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Ozden E, Yagiz B, Atac F, Cetin H, Bostanci Y, Yakupoglu YK, Sarikaya S. Laparoscopic Nephron-sparing Surgery for Metanephric Adenoma in Children: A Report of 2 Cases. Urology 2015; 86:165-7. [PMID: 26142601 DOI: 10.1016/j.urology.2015.03.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Revised: 03/26/2015] [Accepted: 03/31/2015] [Indexed: 10/23/2022]
Abstract
Metanephric adenoma (MA) is an epithelial benign tumor of the kidney and very rare in children. Here we present 2 cases of MA treated by laparoscopic nephron-sparing surgery in children. To the best of our knowledge, we report the first cases of laparoscopic nephron-sparing surgery for MA in children.
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Affiliation(s)
- Ender Ozden
- Department of Urology, School of Medicine, Ondokuz Mayis University, Samsun, Turkey.
| | - Beytullah Yagiz
- Department of Urology, School of Medicine, Ondokuz Mayis University, Samsun, Turkey
| | - Fatih Atac
- Department of Urology, Private Ada Hospitals, Giresun, Turkey
| | - Hasan Cetin
- Department of Urology, School of Medicine, Ondokuz Mayis University, Samsun, Turkey
| | - Yakup Bostanci
- Department of Urology, School of Medicine, Ondokuz Mayis University, Samsun, Turkey
| | | | - Saban Sarikaya
- Department of Urology, School of Medicine, Ondokuz Mayis University, Samsun, Turkey
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Li G, Fu F, Song H, Niu Y, Su Y. CT imaging spectrum and the histopathological features of adult metanephric adenoma. Br J Radiol 2015; 88:20140807. [PMID: 25966289 DOI: 10.1259/bjr.20140807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
OBJECTIVE To retrospectively evaluate the radiopathological features of adult metanephric adenoma (MA) and explore whether MA can be differentiated on CT images, including the basis of their morphological features and enhancement patterns. METHODS 18 consecutive MA cases (age range, 18-66 years; 9 males and 9 females) were pathologically proven and recruited in our study between January 2004 and June 2014. Unenhanced and contrast-enhanced CT were performed and correlated with corresponding pathological findings to differentiate between MA and other renal tumours. The enhancement pattern, lesion contour and presence of calcifications were evaluated. RESULTS On unenhanced CT scan, the most common (n = 15, 83.3%) CT imaging characteristics were the presence of homogeneity and well-defined solid renal masses; the minority (n = 3, 16.7%) were heterogeneous or centrally located low-attenuation masses. Contrast-enhanced CT image revealed hypoattenuating heterogeneous masses with varying degrees of contrast enhancement in 16 (88.9%) cases, in contrast to those without increased attenuation in 2 (11.1%) cases. Scattered calcification was found only in one case (5.6%). Pathological results revealed that a total of 6 (33.3%) cases had concomitant malignant carcinoma components; 2 (11.1%) patients had malignant MA; and pure MA was found in 10 cases, with a surprisingly high proportion of malignant tumours. CONCLUSION The positive-predictive values of "high" enhancement seemed relatively characteristic for the diagnosis of malignant and composite MA. ADVANCES IN KNOWLEDGE Radiopathological features of adult MA and exploring whether MA can be differentiated on CT images, including the basis of their morphological features and enhancement patterns.
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Affiliation(s)
- G Li
- 1 Department of Urology, The second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - F Fu
- 2 Department of Radiology, The People's Hospital of Bin Zhou, Bin Zhou, China
| | - H Song
- 1 Department of Urology, The second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Y Niu
- 1 Department of Urology, The second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Y Su
- 3 Department of Urology, Tianjin Union Medicine Center, Tianjin, China
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Yin M, Cai J, Thorner PS. Congenital renal tumor: metanephric adenoma, nephrogenic rest, or malignancy? Pediatr Dev Pathol 2015; 18:245-50. [PMID: 25734608 DOI: 10.2350/15-01-1595-cr.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We report a renal tumor detected by prenatal ultrasound and resected at 2 months of age. This 9-cm, solid mass was composed of tubular and papillary structures lined by small, uniform epithelial cells. There was local invasion into renal parenchyma and a tumor deposit in a hilar lymph node. The tumor was immunopositive for WT1, pankeratin, and CD10; focally positive for CK7; and negative for EMA and TFE3. Based on morphology and immunophenotype, the favored diagnosis was metanephric adenoma over Wilms tumor, renal cell carcinoma, and nephrogenic rest. However, metanephric adenoma only occasionally occurs in children and has never been reported prenatally. Alternatively, this tumor might be a congenital Wilms tumor that differentiated completely. Although the nature of the tumor remains unconfirmed, resection appears to have been curative; the patient remains disease-free 18 months following surgery alone.
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Affiliation(s)
- Mlnzhi Yin
- Department of Pathology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Jiaoyang Cai
- Key Laboratory of Pediatric Hematology and Oncology, Ministry of Health, Department of Pediatric Hematology and Oncology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Paul Scott Thorner
- Division of Pathology, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
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11
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Li G, Tang Y, Zhang R, Song H, Zhang S, Niu Y. Adult metanephric adenoma presumed to be all benign? A clinical perspective. BMC Cancer 2015; 15:310. [PMID: 25907695 PMCID: PMC4411942 DOI: 10.1186/s12885-015-1211-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 03/18/2015] [Indexed: 11/10/2022] Open
Abstract
Background In most documented literature, metanephric adenoma (MA) is described as a benign tumour. Nevertheless, the nature of MA remains unclear and the clinical criteria of different MA subtypes are not well established. In the present study, we investigated the clinicopathological characteristics of MA, especially those of the uncommon histological subtypes. Methods A cohort study was performed on 18 patients with pathologically proven MA in our institute from January 2004 to June 2014. The patients’ clinicopathological and radiological data were retrospectively analysed and evaluated with an emphasis on the corresponding subtypes. Results The patient population had a female: male ratio of 1:1 and mean age of 50 years (range, 18–66 years). The mean tumour size was 3.9 cm (range, 1.4–9.0 cm). There were no pathognomonic radiological features that posed a challenge for a preoperative diagnosis of MA. Fourteen patients underwent radical nephrectomy, and the other four underwent partial nephrectomy. Three histological subtypes were observed: classic MA (n = 10), malignant MA (n = 2), and composite MA with coexistence of different malignant components (n = 6). Despite the presence of atypical histological features and malignant components among the patients, only one patient developed distant metastasis (median postoperative follow-up, 56 months; range, 30–86 months). Conclusions MAs are a heterogeneous group of neoplasms with different biological characteristics. The correct identification of this entity and its subtypes would facilitate stratification of optimal management protocols and accurate assessment of the prognosis.
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Affiliation(s)
- Gang Li
- Department of Urology, The second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, 300211, China.
| | - Yuhong Tang
- Hebei North University, Laboratory Medicine College, Zhangjiakou, 075000, China.
| | - Renya Zhang
- Department of Pathology, Affiliated Hospital of Jining Medical University, Jining, China.
| | - Hualin Song
- Department of Urology, The second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, 300211, China.
| | - Shumin Zhang
- Department of Urology, The second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, 300211, China.
| | - Yuanjie Niu
- Department of Urology, The second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, 300211, China.
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12
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Chami R, Yin M, Marrano P, Teerapakpinyo C, Shuangshoti S, Thorner PS. BRAF mutations in pediatric metanephric tumors. Hum Pathol 2015; 46:1153-61. [PMID: 26014474 DOI: 10.1016/j.humpath.2015.03.019] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 03/20/2015] [Accepted: 03/30/2015] [Indexed: 11/25/2022]
Abstract
Metanephric neoplasms of the kidney are uncommon, and some cases are associated with papillary carcinoma. Most cases of metanephric adenoma occur in adults, with fewer than 25 cases reported in children, and metanephric adenofibroma is even less common. The few metanephric tumors studied at the genetic level have not shown the gains of chromosomes 7 and 17 commonly seen in renal cell carcinoma, suggesting that the carcinoma arising in this setting has a separate genetic origin from the adenoma. However, the assumption that this carcinoma has the same chromosome gains as sporadic renal cell carcinoma has never been validated. We studied 4 cases of metanephric tumors in children, including 1 metanephric adenofibroma with papillary carcinoma. The composite tumor was studied by single nucleotide polymorphism array and fluorescence in situ hybridization, with the adenoma and carcinoma components analyzed separately. No copy number alterations were detected in either component. A BRAF V600E mutation has been reported in most cases of metanephric adenoma in adults. We performed BRAF V600E immunostaining and sequencing in our 4 pediatric cases. Three cases had a BRAF V600E mutation including the composite tumor, with both the adenoma and carcinoma components showing the same mutation. This finding provides the first genetic evidence that these 2 tumors are biologically linked. Ten cases each of pediatric renal cell carcinoma and Wilms tumor were immunonegative. Thus, BRAF V600E immunostaining is a helpful marker for pediatric metanephric adenoma, and additional research is required on the possible role of this mutation in the development of renal carcinoma.
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Affiliation(s)
- Rose Chami
- Division of Pathology, The Hospital for Sick Children, Toronto, Canada M5G 1X8; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada M5S1A1
| | - Minzhi Yin
- Department of Pathology, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Paula Marrano
- Division of Pathology, The Hospital for Sick Children, Toronto, Canada M5G 1X8
| | - Chinachote Teerapakpinyo
- Chula GenePRO Center, Research Affairs, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Shanop Shuangshoti
- Chula GenePRO Center, Research Affairs, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand; Department of Pathology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Paul Scott Thorner
- Division of Pathology, The Hospital for Sick Children, Toronto, Canada M5G 1X8; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada M5S1A1; Department of Pathology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand.
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13
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Delzongle M, Boukamel S, Kemeny F, Chaaban I, Abadzhieva D, Sahnoun M, Soyer P, Béroud P. Metanephric adenoma: MR imaging features with histopathological correlation. Diagn Interv Imaging 2014; 96:387-90. [PMID: 25487835 DOI: 10.1016/j.diii.2014.11.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- M Delzongle
- Department of Medical Imaging, centre hospitalier de Meaux, 6-8, rue Saint-Fiacre, 77100 Meaux, France
| | - S Boukamel
- Department of Urology, centre hospitalier de Meaux, 6-8, rue Saint-Fiacre, 77100 Meaux, France
| | - F Kemeny
- Department of Pathology, hôpital de Marne-la-Vallée, 2-4, cours de la Gondoire, 77600 Jossigny, France
| | - I Chaaban
- Department of Medical Imaging, centre hospitalier de Meaux, 6-8, rue Saint-Fiacre, 77100 Meaux, France
| | - D Abadzhieva
- Department of Medical Imaging, centre hospitalier de Meaux, 6-8, rue Saint-Fiacre, 77100 Meaux, France
| | - M Sahnoun
- Department of Medical Imaging, centre hospitalier de Meaux, 6-8, rue Saint-Fiacre, 77100 Meaux, France
| | - P Soyer
- Department of Radiology, hôpital Lariboisière, AP-HP, 2, rue Ambroise-Paré, 75010 Paris, France.
| | - P Béroud
- Department of Medical Imaging, centre hospitalier de Meaux, 6-8, rue Saint-Fiacre, 77100 Meaux, France
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