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Ma P, Yu C, Cui J, Li S. Postoperative bone metastases of unclassified renal cell carcinoma. Asian J Surg 2024; 47:602-603. [PMID: 37813791 DOI: 10.1016/j.asjsur.2023.09.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 10/11/2023] Open
Affiliation(s)
- Pengfei Ma
- Department of Urology Surgery, Hebei General Hospital Affiliated to North China University of Science and Technology, Shijiazhuang, China
| | - Chunhong Yu
- Department of Health Examination Center, Hebei General Hospital, Shijiazhuang, China
| | - Jiarui Cui
- Department of Urology Surgery, Hebei General Hospital Affiliated to North China University of Science and Technology, Shijiazhuang, China
| | - Shoubin Li
- Department of Urology Surgery, Hebei General Hospital, Shijiazhuang, China.
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Siadat F, Mansoor M, Hes O, Trpkov K. Kidney Tumors: New and Emerging Kidney Tumor Entities. Clin Lab Med 2023; 43:275-298. [PMID: 37169446 DOI: 10.1016/j.cll.2023.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
This review summarizes current knowledge on several novel and emerging renal entities, including eosinophilic solid and cystic renal cell carcinoma (RCC), RCC with fibromyomatous stroma, anaplastic lymphoma kinase-rearranged RCC, low-grade oncocytic renal tumor, eosinophilic vacuolated tumor, thyroidlike follicular RCC, and biphasic hyalinizing psammomatous RCC. Their clinical features, gross and microscopic morphology, immunohistochemistry, and molecular and genetic features are described. The diagnosis of most of them rests on recognizing their morphologic features using immunohistochemistry. Accurate diagnosis of these entitles will further reduce the category of "unclassifiable renal carcinomas/tumors" and will lead to better clinical management and improved patient prognostication.
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Affiliation(s)
- Farshid Siadat
- Department of Pathology and Laboratory Medicine, Cumming School of Medicine, University of Calgary, Rockyview General Hospital, 7007 14 Street, Calgary, Alberta T2V 1P9, Canada. https://twitter.com/FSiadat
| | - Mehdi Mansoor
- Department of Pathology and Laboratory Medicine, Cumming School of Medicine, University of Calgary, Rockyview General Hospital, 7007 14 Street, Calgary, Alberta T2V 1P9, Canada
| | - Ondrej Hes
- Department of Pathology, Charles University in Prague, Faculty of Medicine in Plzeň, University Hospital Plzen, Alej Svobody 80, 304 60 Pilsen, Czech Republic
| | - Kiril Trpkov
- Department of Pathology and Laboratory Medicine, Cumming School of Medicine, University of Calgary, Rockyview General Hospital, 7007 14 Street, Calgary, Alberta T2V 1P9, Canada.
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3
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Siadat F, Mansoor M, Hes O, Trpkov K. Kidney Tumors: New and Emerging Kidney Tumor Entities. Surg Pathol Clin 2022; 15:713-728. [PMID: 36344185 DOI: 10.1016/j.path.2022.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
This review summarizes current knowledge on several novel and emerging renal entities, including eosinophilic solid and cystic renal cell carcinoma (RCC), RCC with fibromyomatous stroma, anaplastic lymphoma kinase-rearranged RCC, low-grade oncocytic renal tumor, eosinophilic vacuolated tumor, thyroidlike follicular RCC, and biphasic hyalinizing psammomatous RCC. Their clinical features, gross and microscopic morphology, immunohistochemistry, and molecular and genetic features are described. The diagnosis of most of them rests on recognizing their morphologic features using immunohistochemistry. Accurate diagnosis of these entitles will further reduce the category of "unclassifiable renal carcinomas/tumors" and will lead to better clinical management and improved patient prognostication.
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Affiliation(s)
- Farshid Siadat
- Department of Pathology and Laboratory Medicine, Cumming School of Medicine, University of Calgary, Rockyview General Hospital, 7007 14 Street, Calgary, Alberta T2V 1P9, Canada. https://twitter.com/FSiadat
| | - Mehdi Mansoor
- Department of Pathology and Laboratory Medicine, Cumming School of Medicine, University of Calgary, Rockyview General Hospital, 7007 14 Street, Calgary, Alberta T2V 1P9, Canada
| | - Ondrej Hes
- Department of Pathology, Charles University in Prague, Faculty of Medicine in Plzeň, University Hospital Plzen, Alej Svobody 80, 304 60 Pilsen, Czech Republic
| | - Kiril Trpkov
- Department of Pathology and Laboratory Medicine, Cumming School of Medicine, University of Calgary, Rockyview General Hospital, 7007 14 Street, Calgary, Alberta T2V 1P9, Canada.
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Akgul M, Cheng L. Immunophenotypic and pathologic heterogeneity of unclassified renal cell carcinoma: a study of 300 cases. Hum Pathol 2020; 102:70-78. [PMID: 32619439 DOI: 10.1016/j.humpath.2020.06.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/20/2020] [Accepted: 06/22/2020] [Indexed: 12/15/2022]
Abstract
Renal cell carcinoma, unclassified (RCC-U), is a heterogenous group of tumors that do not fit in any of the recognized histologic types. Immunohistochemical studies are frequently used to characterize these tumors. Herein, we sought to investigate the immunophenotypes of 300 cases of RCC-U. The cases were morphologically classified into three groups: oncocytoma/chromophobe renal cell carcinoma-like, group 1; clear cell renal cell carcinoma-like, group 2; and others (ie, papillary renal cell carcinoma-like/collecting duct-like/pure sarcomatoid), group 3. The male-to-female ratio was 1.4. Most cases (168, 66%) were group 1. Group 3 was associated with larger tumor size, advanced stage, and frequent lymph node metastases. The most commonly used immunohistochemical stains were CK7 (n = 270; 89.5%), vimentin (n = 186, 82%), CD10 (n = 181; 59.9%), and AMACR (n = 162; 54%). Pancytokeratin (79/101; 78.2%) and PAX8 (54/61; 88.5%) were diffusely positive in most cases, followed by AMACR (69/117; 59%). CD117 was positive in 53 of 118 cases (45%). RCC-U is a morphologically and immunophenotypically heterogenous group of tumors, and comprehensive workup is needed before rendering the diagnosis.
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Affiliation(s)
- Mahmut Akgul
- Departments of Pathology, Indiana University, Indianapolis, IN 46202, USA
| | - Liang Cheng
- Departments of Pathology, Indiana University, Indianapolis, IN 46202, USA; Departments Urology, Indiana University, Indianapolis, IN 46202, USA.
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Colombo P, Smith SC, Massa S, Renne SL, Brambilla S, Peschechera R, Graziotti P, Roncalli M, Amin MB. Unclassified Renal Cell Carcinoma With Medullary Phenotype Versus Renal Medullary Carcinoma: Lessons From Diagnosis in an Italian Man Found to Harbor Sickle Cell Trait. Urol Case Rep 2015; 3:215-8. [PMID: 26793557 PMCID: PMC4714316 DOI: 10.1016/j.eucr.2015.07.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 07/28/2015] [Indexed: 12/02/2022] Open
Abstract
Medullary carcinoma is a rare malignant tumor of the kidney. It affects individuals of African descent and all cases reported show evidence of sickle cell trait. We reviewed an unusual carcinoma arising in a white man, the ninth in the literature. The tumor demonstrated features associated with renal medullary carcinoma, or unclassified renal cell carcinoma, medullary phenotype as recently described; the presence of sickle cell trait confirmed the diagnosis of medullary carcinoma. This case is helpful in the differential diagnosis with non-sickle cell associated “renal cell carcinoma, unclassified with medullary phenotype,” and study of this spectrum of tumors is ongoing.
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Affiliation(s)
- Piergiuseppe Colombo
- Department of Pathology, Humanitas Research Center, IRCCS, Humanitas University, Rozzano, Milan, Italy
| | - Steven C Smith
- Department of Pathology, VCU Health System, Richmond, VA, USA
| | - Simona Massa
- Department of Pathology, Humanitas Research Center, IRCCS, Humanitas University, Rozzano, Milan, Italy
| | - Salvatore L Renne
- Department of Pathology, Humanitas Research Center, IRCCS, Humanitas University, Rozzano, Milan, Italy
| | - Simona Brambilla
- Clinical Laboratory, Humanitas Research Center, IRCCS, Rozzano, Milan, Italy
| | - Roberto Peschechera
- Department of Urology, Humanitas Research Center, IRCCS, Rozzano, Milan, Italy
| | - Pierpaolo Graziotti
- Department of Urology, Humanitas Research Center, IRCCS, Rozzano, Milan, Italy
| | - Massimo Roncalli
- Department of Pathology, Humanitas Research Center, IRCCS, Humanitas University, Rozzano, Milan, Italy
| | - Mahul B Amin
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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Hu ZY, Pang LJ, Qi Y, Kang XL, Hu JM, Wang L, Liu KP, Ren Y, Cui M, Song LL, Li HA, Zou H, Li F. Unclassified renal cell carcinoma: a clinicopathological, comparative genomic hybridization, and whole-genome exon sequencing study. Int J Clin Exp Pathol 2014; 7:3865-3875. [PMID: 25120763 PMCID: PMC4128998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 06/02/2014] [Indexed: 06/03/2023]
Abstract
Unclassified renal cell carcinoma (URCC) is a rare variant of RCC, accounting for only 3-5% of all cases. Studies on the molecular genetics of URCC are limited, and hence, we report on 2 cases of URCC analyzed using comparative genome hybridization (CGH) and the genome-wide human exon GeneChip technique to identify the genomic alterations of URCC. Both URCC patients (mean age, 72 years) presented at an advanced stage and died within 30 months post-surgery. Histologically, the URCCs were composed of undifferentiated, multinucleated, giant cells with eosinophilic cytoplasm. Immunostaining revealed that both URCC cases had strong p53 protein expression and partial expression of cluster of differentiation-10 and cytokeratin. The CGH profiles showed chromosomal imbalances in both URCC cases: gains were observed in chromosomes 1p11-12, 1q12-13, 2q20-23, 3q22-23, 8p12, and 16q11-15, whereas losses were detected on chromosomes 1q22-23, 3p12-22, 5p30-ter, 6p, 11q, 16q18-22, 17p12-14, and 20p. Compared with 18 normal renal tissues, 40 mutated genes were detected in the URCC tissues, including 32 missense and 8 silent mutations. Functional enrichment analysis revealed that the missense mutation genes were involved in 11 different biological processes and pathways, including cell cycle regulation, lipid localization and transport, neuropeptide signaling, organic ether metabolism, and ATP-binding cassette transporter signaling. Our findings indicate that URCC may be a highly aggressive cancer, and the genetic alterations identified herein may provide clues regarding the tumorigenesis of URCC and serve as a basis for the development of targeted therapies against URCC in the future.
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Affiliation(s)
- Zhen-Yan Hu
- Department of Pathology, School of Medicine, Shihezi University, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education of ChinaXinjiang 832002, China
| | - Li-Juan Pang
- Department of Pathology, School of Medicine, Shihezi University, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education of ChinaXinjiang 832002, China
| | - Yan Qi
- Department of Pathology, School of Medicine, Shihezi University, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education of ChinaXinjiang 832002, China
- Tongji Hospital Cancer Center, Tongji Medical College, Huazhong University of Science and TechnologyWuhan, Hubei, China
| | - Xue-Ling Kang
- Department of Pathology, School of Medicine, Shihezi University, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education of ChinaXinjiang 832002, China
| | - Jian-Ming Hu
- Department of Pathology, School of Medicine, Shihezi University, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education of ChinaXinjiang 832002, China
- Tongji Hospital Cancer Center, Tongji Medical College, Huazhong University of Science and TechnologyWuhan, Hubei, China
| | - Lianghai Wang
- Department of Pathology, School of Medicine, Shihezi University, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education of ChinaXinjiang 832002, China
| | - Kun-Peng Liu
- Department of Pathology, School of Medicine, Shihezi University, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education of ChinaXinjiang 832002, China
| | - Yuan Ren
- Department of Pathology, School of Medicine, Shihezi University, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education of ChinaXinjiang 832002, China
| | - Mei Cui
- Department of Pathology, School of Medicine, Shihezi University, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education of ChinaXinjiang 832002, China
| | - Li-Li Song
- Department of Pathology, School of Medicine, Shihezi University, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education of ChinaXinjiang 832002, China
| | - Hong-An Li
- Department of Pathology, School of Medicine, Shihezi University, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education of ChinaXinjiang 832002, China
| | - Hong Zou
- Department of Pathology, School of Medicine, Shihezi University, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education of ChinaXinjiang 832002, China
- Tongji Hospital Cancer Center, Tongji Medical College, Huazhong University of Science and TechnologyWuhan, Hubei, China
| | - Feng Li
- Department of Pathology, School of Medicine, Shihezi University, Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education of ChinaXinjiang 832002, China
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