Table 3

Scores of positive tissue controls in immunohistochemistry 1996–8

Antigen/antibodyUnnacceptable (%) Score 0–4Borderline (%) Score 5–6Optimal (%) Score 7–8
*Includes two slides where inappropriate tissue was used as control (scored as 0).
CD45 (n = 72)1.433.365.3
CD20 (n = 70)01090
CD3 (n = 69)1.517.481.1
CAM5.2 (n = 71)2.836.660.6
AE1/3 (n = 69)7.330.462.3
*CEA (n = 71)7.023.969.1
NSE (n = 58)36.160.43.5
*Chromogranin A (n = 67)10.526.862.7
S100 (n = 72)025.075.0
Desmin (n = 64)1.612.585.9