Table 3.
Immunohistochemical studies of ten resected lung specimens sampled
| Antibody (source) | Quartile difference from FFPE (# of cases) | Intensity difference from FFPE (# of cases) |
|---|---|---|
| AE1/3 (Leica, multikeratin mouse ascitic fluid) | 0 (6); 1 (−CBF, −CBA) | 0 (6), <1 (−CBF) |
| CK7 (Leica RN7, mouse monoclonal) | 0 (7); 1(−CBF) | 0 (8) |
| CK8/18 (Leica, 5D3, mouse monoclonal) | 0 (7) | 0 (7) |
| CD56 (Leica, CD564 mouse monoclonal) | 0 (3) | 0 (3) |
| Chromogranin | 0 (3) | 0 (3) |
| Synaptophysin (Leica, 27G12 mouse monoclonal) | 0 (3) | 0 (3) |
| p40 (Biocare, Rabbit polyclonal) | 0 (9) | 0 (9) |
| p63 (Biocare, BC4A4 mouse monoclonal) | 0 (8); 1 (−CBF, −CBA) | 0 (7); 1 (−CBA) |
| TTF-1 (Leica, SPT24 mouse monoclonal) | 0 (10) | 0 (10) |
FFPE: Formalin-Fixed Paraffin-Embedded histology tissue which serves as the control, CBF: Formalin-fixed cell suspension processed by plasma-thrombin method into a cell block, CBA: Alcohol-fixed cell suspension (CytoRich) processed by plasma thrombin into a cell block, − Denotes decrease in proportion of cells stained within the CBF/CBA preparations