Table 1.
Selected patients and tumor characteristics.
| Case no. | Age | Sex | T stage | N stage | M stage | Clinical stage |
|---|---|---|---|---|---|---|
| 01 | 40 | M | 2 | 2 | 0 | III |
| 02 | 52 | F | 1 | 3 | 0 | IV |
| 03 | 53 | M | 2 | 2 | 0 | III |
| 04 | 38 | F | 2 | 0 | 0 | II |
| 05 | 64 | M | 2 | 3 | 0 | IV |
| 06 | 52 | F | 2 | 0 | 0 | II |
| 07 | 42 | M | 2 | 1 | 0 | II |
| 08 | 53 | M | 2 | 1 | 0 | II |
| 09 | 53 | M | 1 | 2 | 0 | III |
| 10 | 41 | M | 2 | 1 | 0 | II |
Tumor stage is based on the 8th AJCC staging system. PGTVnx, PGTVnd, PTV1, and PTV2 refer to the PTV of primary tumor of nasopharynx, positive metastatic lymph nodes, high risk region, and low risk region, respectively.