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. 2003 Sep 30;89(7):1266–1269. doi: 10.1038/sj.bjc.6601241

Table 2. Crosstabulated EGFR immunostaining location classes vs Fuhrman nuclear grades.

  Fuhrman nuclear grade
EGFR staining location 1 2 3 4
No staining 0 11 15 5
  0.0% 18.6% 26.3% 35.7%
Membranous staining 3 25 6 2
  75.0% 42.4% 10.5% 14.3%
Cytoplasmic staining 1 23 36 7
  25.0% 39.0% 63.2% 50.0%
  100% 100% 100% 100%

The membranous immunostaining has a statistically significant association with low Fuhrman grades, P=0.001, Fisher's exact test.