Enhancement status—tabulates which samples were collected from enhancing-versus-nonenhancing regionsa
| Tumor Type | Sampling Region | Sample Grade (52 Total) | ||||
|---|---|---|---|---|---|---|
| Normal | II | II/III | III | IV | ||
| Enhancing tumor | Enhancing volume | 0 | 4 | 0 | 2 | 3 |
| Nonenhancing volume | 1 | 4 | 1 | 0 | 2 | |
| Nonenhancing tumor | Nonenhancing volume | 2 | 31 | 2 | 0 | 0 |
↵a In this table, the grade represents the individual grade of the sample, on a sample-by-sample basis, which is not necessarily equal to the patient’s clinical grade. For enhancing tumors, about half the samples were collected from the enhancing portion of the tumor.