Table 1. Clinical and pathological features.
| No. FH (%) | No. AH (%) | |
|---|---|---|
| Age at primary surgery (yrs): | ||
| Younger than 5 | 56 (79) | 2 (20) |
| 5 or Older | 15 (21) | 8 (80) |
| Sex: | ||
| M | 35 (49) | 7 (70) |
| F | 36 (51) | 3 (30) |
| Clinical stage: | ||
| I | 24 (34) | 2 (20) |
| II | 22 (31) | 1 (10) |
| III | 10 (14) | 1 (10) |
| IV | 8 (11) | 5 (50) |
| V | 7 (10) | 1 (10) |
| Low vs high clinical stage: | ||
| Low (I or II) | 50 (70) | 4 (40) |
| High (III or IV) | 21 (30) | 6 (60) |
| Tumor necrosis: | ||
| Absent | 54 (76) | 6 (60) |
| Present | 17 (24) | 4 (40) |
| Mononuclear cell infiltration: | ||
| Absent | 19 (27) | 1 (10) |
| Focal | 32 (45) | 6 (60) |
| Moderate | 16 (23) | 2 (20) |
| Marked | 4 (6) | 1 (10) |
| Tumor B7-H1 expression: | ||
| Absent | 64 (90) | 6 (60) |
| Focal | 5 (7) | 3 (30) |
| Moderate | 2 (3) | 1 (10) |