The Utility of ERBB4 and RB1 Immunohistochemistry in Distinguishing Chromophobe Renal Cell Carcinoma From Renal Oncocytoma

Autor: Karen Dresser, Nicole Ninteau, Qingqing Liu, Lloyd Hutchinson, Tong Sun, Liang Cheng, Zhong Jiang, Ediz F. Cosar, Maryann St. Cyr, Amy G. Zhou, Kristine M. Cornejo
Rok vydání: 2019
Předmět:
Zdroj: International journal of surgical pathology. 28(3)
ISSN: 1940-2465
Popis: Objectives. Differentiating renal oncocytoma (RO) from chromophobe renal cell carcinoma (ChRCC) can occasionally be challenging. We evaluated the expression of RB1 and ERBB4 in RO and ChRCC, and compared the immunohistochemistry (IHC) results to RB1 and ERBB4 gene abnormalities detected by fluorescence in situ hybridization (FISH). Materials and Methods. Fifty-three kidney resections (ChRCC, n=28; RO, n=25) were stained for RB1 and ERBB4 IHC and FISH was performed to evaluate gene copy number analysis. Results. A loss of RB1 staining was identified in 64% (18/28) of ChRCCs, which was not found in any ROs (0/25; P
Databáze: OpenAIRE