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Table 2 Summary of Epidermal Growth Factor Receptor expression in anal canal and tonsil squamous cell carcinoma.

From: Epidermal Growth Factor Receptor and K-RAS status in two cohorts of squamous cell carcinomas

Immuno-reactivity

No. (%) of cases

 

Anal Canal SCC (n = 43)

Tonsil SCC (n = 24)

 

-

1+

2+

3+

-

1+

2+

3+

<5%

7 (16.3)

0

0

0

4 (16.7)

0

0

0

5-25%

0

4 (9.3)

2 (4.7)

1 (2.3)

0

6 (25)

0

1 (4.2)

26-50%

0

0

3 (7)

2 (4.7)

0

2 (8.3)

1 (4.2)

0

51-75%

0

1 (2.3)

4 (9.3)

2 (4.7)

0

2 (8.3)

1 (4.2)

2 (8.3)

>75%

0

2 (4.7)

3 (7)

12 (27.9)

0

0

2 (8.3)

3 (12.5)

Total

7 (16.3)

7 (16.3)

12 (28)

17 (39.6)

4 (16.7)

10 (41.6)

4 (16.7)

6 (25)

  1. -: negative immunostaining 1+: weak immunostaining; 2+: moderate immunostaining; 3+: strong immunostaining; SCC: squamous cell carcinoma