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American Journal of Pathology, Vol 134, 967-971, Copyright © 1989 by American Society for Investigative Pathology

REGULAR ARTICLES

Renal oncocytoma. A phenotypic and genotypic entity of renal parenchymal tumors

G Kovacs, C Welter, L Wilkens, N Blin and W Deriese
Institute of Pathology, Hannover Medical School, Federal Republic of Germany.

The light and electron microscopic morphology of two renal parenchymal tumors was consistent with the diagnosis of renal oncocytoma. Both tumors had a mosaic chromosome pattern of cells with normal and abnormal karyotypes. No recurrent chromosome aberration and also no rearrangement of chromosome 3p was found. Restriction analysis of the mitochondrial DNA revealed a new autoradiographic band at about 50 basepairs in size occurring exclusively in oncocytomas. The possible use of these findings in the diagnosis of renal oncocytomas is discussed.




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Copyright © 1989 by the American Society for Investigative Pathology.