p40 and LN332 immunohistochemical expression in spindle cell metaplastic carcinomas compared with p63 and cytokeratin expression
| Metaplastic carcinomas (n=36) | CK and p63 positive, n (%) | CK positive, p63 negative, n (%) | p63 positive, CK negative, n (%) | Total, n (%) |
|---|---|---|---|---|
| p40 | ||||
| Positive | 21 (100) | 0 | 0 | 21 (58.3) |
| Negative | 8 (53.3) | 3 (20) | 4 (26.7) | 15 (41.7) |
| LamC2 | ||||
| Positive | 24 (85.7) | 3 (10.7) | 1 (3.6) | 28 (77.8) |
| Negative | 5 (62.5) | 0 | 3 (37.5) | 8 (22.2) |
| Kalinin B1 | ||||
| Positive | 20 (76.9) | 2 (7.7) | 4 (15.4) | 26 (72.2) |
| Negative | 9 (90) | 1 (10) | 0 | 10 (27.8) |
| Total (n (%)) | 29 (80.6) | 3 (8.3) | 4 (11.1) | 36 |
CK, cytokeratin; LamC2, laminin γ2.