Table 3.
Characteristics of analyzed patients and Bosniak category III lesions
| Malignant | Benign | P Value | |
|---|---|---|---|
| Mean age ± standard deviation (SD) (years) | 56.96 ±15.8 | 59.94 ±9.3 | P = 0.835 |
| Mean tumor size ± SD (mm) | 33.71 ±17.9 | 44.61 ±16.7 | P = 0.031 |
| Exophytic/ Endophytic location [% (n)] | 35.7 (15)/ 21.4 (9) | 31 (13)/ 11.9(5) | P = 0.508 |
| Defined/ undefined shape [% (n)] | 26.2 (11)/ 31 (13) | 33.3 (14)/ 9.5 (4) | P = 0.057 |
| Calcified component/ No calcified component [% (n)] | 21.4 (9)/ 35.7 (15) | 19 (8)/ 23.8 (10) | P = 0.65 |
| Presence of septa/ No septa [% (n)] | 40.5 (17)/ 16.7 (7) | 28.6 (12)/ 14.3 (6) | P = 0.773 |
| Enhancement of Bosniak category III lesions | |||
| Contrast enhancing lesions/ No enhancement [% (n)] | 52.4 (22)/ 4.8 (2) | 28.6 (12)/ 14.3 (6) | P = 0.056 |
| Native phase ( Hounsfield Units (HU)) | 25.92 ±12.7 | 20.94 ±9.7 | P = 0.217 |
| Mean enhancement in arterial phase (HU) | 68.46 ±40.6 | 44.00 ±21.6 | P = 0.037 |
| Mean enhancement in portovenous phase (HU) | 57.42 ±29.6 | 38.28 ±17.9 | P = 0.017 |
| Mean arterial phase (HU) – Mean native phase (HU) | 42.54 ±36.2 | 23.06 ±19.7 | P = 0.069 |
| Mean portovenous phase (HU) – Mean native phase (HU) | 31.50 ±24.1 | 17.33 ±16.3 | P = 0.039 |
| Mean arterial phase (HU) – Mean portovenous phase (HU) | 11.04 ±17.7 | 5.72 ±7.2 | P = 0.647 |