Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
HLA Class I antigen defects in chordoma
| HLA Class I component | |||
| HLA-A (n = 24) | HLA-B/C (n = 24) | β-2-microglobulin (n = 24) | |
| Staining intensity | |||
| Negative | 7 | 4 | 0 |
| Weakly positive | 2 | 5 | 11 |
| Strongly positive | 15 | 15 | 13 |
| Staining pattern | |||
| Homogeneous negative | 7 | 4 | 0 |
| Heterogeneous (fewer than 60% of tumor cells stain positive) | 8 | 11 | 4 |
| Homogeneous positive | 9 | 9 | 20 |
