Table 1
Fuhrman nuclear grading of renal carcinoma49
| Grade | Features |
|---|---|
| Grade 1 | Round uniform nuclei approximately 10 μm in diameter with very small or absent nucleoli |
| Grade 2 | Slightly irregular nuclear contours and diameters of approximately 15 μm with nucleoli visible at ×400 |
| Grade 3 | Moderately to severely irregular nuclear contours and diameters of approximately 20 μm, with large nucleoli visible at ×100 |
| Grade 4 | Nuclei similar to grade 3 but also multilobular, multiple, or bizarre nuclei and heavy clumps of chromatin |
