Which microscopic findings are characteristic of Fuhrman system grade 1 renal cell carcinoma (RCC)?

Updated: Jul 02, 2019
  • Author: YiFen Zhang, MD, PhD; Chief Editor: Liang Cheng, MD  more...
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Answer

Answer

Using the 10× objective, the nuclei of the tumor cells are small (< 10 µm), hyperchromatic, and round (resembling mature lymphocytes), with no visible nucleoli and little detail in the chromatin, as shown in the image below.

Pathology grading of renal cell carcinoma. Renal c Pathology grading of renal cell carcinoma. Renal cell carcinoma, clear cell type, Fuhrman grade 1/4.

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