Table 1.
Baseline characteristics of 128 lesions in 115 subjects
| Gendera | 94 men, 21 | women |
| Agea | ||
| Mean ± SD | 62.2±11.6 | |
| Median (range) | 62 | (28–90) |
| Site of accruala | ||
| Site 1 | 56 | (49) |
| Site 2 | 59 | (51) |
| Sizeb | ||
| Mean ± SD | 38.7±29.2 | |
| Median (range) | 28 | (7–168) |
| Method of diagnosisb | ||
| Total nephrectomy | 79 | (62) |
| Partial nephrectomy | 42 | (33) |
| Core biopsy of primary mass | 5 | (4) |
| Core biopsy of metastasis | 2 | (2) |
| T statusb | ||
| T1 | 93 | (73) |
| T2 | 8 | (6) |
| T3 | 20 | (16) |
| T status unknown (mass not resected) | 7 | (5) |
| N statusa | ||
| N0 | 10 | (9) |
| N1 | 2 | (2) |
| N2 | 3 | (3) |
| Nodes not histologically assessed | 100 | (87) |
| Pathological typeb | ||
| 1 | 65 | (51) |
| 2 | 63 | (49) |
| MRI appearanceb | ||
| I | 83 | (65) |
| II | 36 | (28) |
| III | 9 | (7) |
| Overall categoryb | ||
| Focal type 1 pRCC | 65 | (51) |
| Focal type 2 pRCC | 54 | (42) |
| Infiltrative pRCC | 9 | (7) |
Data m parentheses are percentages unless indicated otherwise
a
Reported on a per-patient basis
b
Reported on a per-lesion basis