Table 2.
Contrast-enhanced computed tomography characteristics of complex renal cysts before curative surgery.
| Characters | Multilocular cystic renal neoplasm of low malignant potential | The other cystic renal cell carcinoma | Comparisons between group | |
| Data of cysts included in the analysis | 66 | 153 | P value | |
| Bosniak classification | III∗ | 39 (59) | 45 (29) | <.0001 |
| IV | 27 (41) | 108 (71) | ||
| Calcification | Yes∗ | 21 (32) | 17 (11) | .001 |
| No | 45 (68) | 136 (89) | ||
| Diameter (cm) | Minimum | 2.11 | 1.33 | .851 |
| Maximum | 10.12 | 9.91 | ||
| Mean ± SD | 4.11 ± 1.25 | 4.15 ± 1.52 | ||
| Mean HU | During pre-contrast phase∗ | 25.12 ± 6.15 | 27.81 ± 8.45 | .021 |
| During corticomedullary phase∗ | 32.91 ± 7.16 | 48.18 ± 9.15 | <.0001 | |
| During early excretory phase∗ | 40.15 ± 6.45 | 52.11 ± 8.81 | <.0001 | |