Table 3.
Summary of PIK3CA mutation concordance data comparing plasma with tissue samples (N = 72).
| No | % | |
|---|---|---|
| Total concordance (no alteration or identical alteration) | 52 | 72.2 |
| No alterations found in plasma and tissue | 28 | 38.9 |
| Identical alterations found in plasma and tissue | 24 | 33.3 |
| Total discordant samples | 20 | 27.8 |
| Different alterations found in plasma and tissue | 4 | 5.6 |
| Plasma only | 10 | 13.9 |
| Tissue only | 6 | 8.3 |
| Total number of alterations found in tissue | 35 | – |
| Total number of alterations found in plasma | 42 | – |
| Samples with double mutations in tissue | 1 | 1.4 |
| Samples with double mutations in plasma | 4 | 5.6 |