Clear cell papillary renal cell carcinoma and renal angiomyoadenomatous tumor: two variants of a morphologic, immunohistochemical, and genetic distinct entity of renal cell carcinoma. 2015

Karl-Friedrich Deml, and Hans-Ulrich Schildhaus, and Eva Compérat, and Adriana von Teichman, and Martina Storz, and Peter Schraml, and Joseph V Bonventre, and Falko Fend, and Barbara Fleige, and Andreas Nerlich, and Helmut E Gabbert, and Nikolaus GaBler, and Rainer Grobholz, and Seife Hailemariam, and Raoul Hinze, and Ruth Knüchel, and Benoit Lhermitte, and Gabriella Nesi, and Thomas Rüdiger, and Guido Sauter, and Holger Moch
*Institute of Surgical Pathology, University Hospital Zurich, Zurich ‡‡Cantonal Hospital Aarau §§Institute of Histological and Cytological Diagnostics, Aarau ¶¶University Institute of Pathology, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland †Institute of Pathology, University Medicine Göttingen (UMG), Göttingen ∥Institute of Pathology, University Hospital Tübingen, Tübingen ¶Institute of Pathology, HELIOS Hospital Berlin-Buch, Berlin #Institute of Pathology Bogenhausen, Städtisches Klinikum München GmbH, Munich **Institute of Pathology, Heinrich Heine University Hospital, Dusseldorf ††Institute of Pathology, RWTH University, Aachen ∥∥Institute of Pathology, HELIOS Hospital Schwerin, Schwerin ***Institute of Pathology, Städtisches Klinikum Karlsruhe gGmbH, Karlsruhe †††Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany ‡Service d'Anatomie et Cytologie Pathologiques 1, Groupe Hospitalier Pitié-Salpêtrière, Paris, France §Department of Medicine, Renal Division, Brigham and Women's Hospital, Boston, MA ##Institute of Pathology, University of Florence, Florence, Italy.

Clear cell papillary renal cell carcinoma (ccpRCC) and renal angiomyoadenomatous tumor (RAT) share morphologic similarities with clear cell (ccRCC) and papillary RCC (pRCC). It is a matter of controversy whether their morphologic, immunophenotypic, and molecular features allow the definition of a separate renal carcinoma entity. The aim of our project was to investigate specific renal immunohistochemical biomarkers involved in the hypoxia-inducible factor pathway and mutations in the VHL gene to clarify the relationship between ccpRCC and RAT. We investigated 28 ccpRCC and 9 RAT samples by immunohistochemistry using 25 markers. VHL gene mutations and allele losses were investigated by Sanger sequencing and fluorescence in situ hybridization. Clinical follow-up data were obtained for a subset of the patients. No tumor recurrence or tumor-related death was observed in any of the patients. Immunohistochemistry and molecular analyses led to the reclassification of 3 tumors as ccRCC and TFE3 translocation carcinomas. The immunohistochemical profile of ccpRCC and RAT samples was very similar but not identical, differing from both ccRCC and pRCC. Especially, the parafibromin and hKIM-1 expression exhibited differences in ccpRCC/RAT compared with ccRCC and pRCC. Genetic analysis revealed VHL mutations in 2/27 (7%) and 1/7 (14%) ccpRCC and RAT samples, respectively. Fluorescence in situ hybridization analysis disclosed a 3p loss in 2/20 (10%) ccpRCC samples. ccpRCC and RAT have a specific morphologic and immunohistochemical profile, but they share similarities with the more aggressive renal tumors. On the basis of our results, we regard ccpRCC/RAT as a distinct entity of RCCs.

UI MeSH Term Description Entries
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D007680 Kidney Neoplasms Tumors or cancers of the KIDNEY. Cancer of Kidney,Kidney Cancer,Renal Cancer,Cancer of the Kidney,Neoplasms, Kidney,Renal Neoplasms,Cancer, Kidney,Cancer, Renal,Cancers, Kidney,Cancers, Renal,Kidney Cancers,Kidney Neoplasm,Neoplasm, Kidney,Neoplasm, Renal,Neoplasms, Renal,Renal Cancers,Renal Neoplasm
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D002292 Carcinoma, Renal Cell A heterogeneous group of sporadic or hereditary carcinoma derived from cells of the KIDNEYS. There are several subtypes including the clear cells, the papillary, the chromophobe, the collecting duct, the spindle cells (sarcomatoid), or mixed cell-type carcinoma. Adenocarcinoma, Renal Cell,Carcinoma, Hypernephroid,Grawitz Tumor,Hypernephroma,Renal Carcinoma,Adenocarcinoma Of Kidney,Adenocarcinoma, Renal,Chromophil Renal Cell Carcinoma,Chromophobe Renal Cell Carcinoma,Clear Cell Renal Carcinoma,Clear Cell Renal Cell Carcinoma,Collecting Duct Carcinoma,Collecting Duct Carcinoma (Kidney),Collecting Duct Carcinoma of the Kidney,Nephroid Carcinoma,Papillary Renal Cell Carcinoma,Renal Cell Cancer,Renal Cell Carcinoma,Renal Cell Carcinoma, Papillary,Renal Collecting Duct Carcinoma,Sarcomatoid Renal Cell Carcinoma,Adenocarcinoma Of Kidneys,Adenocarcinomas, Renal Cell,Cancer, Renal Cell,Carcinoma, Collecting Duct,Carcinoma, Collecting Duct (Kidney),Carcinoma, Nephroid,Carcinoma, Renal,Carcinomas, Collecting Duct,Carcinomas, Collecting Duct (Kidney),Carcinomas, Renal Cell,Collecting Duct Carcinomas,Collecting Duct Carcinomas (Kidney),Hypernephroid Carcinoma,Hypernephroid Carcinomas,Hypernephromas,Kidney, Adenocarcinoma Of,Nephroid Carcinomas,Renal Adenocarcinoma,Renal Adenocarcinomas,Renal Carcinomas,Renal Cell Adenocarcinoma,Renal Cell Adenocarcinomas,Renal Cell Cancers,Renal Cell Carcinomas,Tumor, Grawitz
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly

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