Table 2 Comparisons of the imaging characteristics of the SPNP
Imaging characteristics | Males (n = 7) | Females (n = 22) | P |
|---|---|---|---|
Maximum tumor diameter [mean(range)] | 3.9 (2.0–6.4) | 7.0 (4.6–14.6) | < 0.001 |
Capsule | 5 (71.4%) | 14 (63.6%) | 0.706 |
Bleeding | 1 (14.3%) | 5 (22.7%) | 0.484 |
Calcification | 5 (71.4%) | 7 (31.8%) | 0.013 |
Tumor component | 0.036 | ||
Completely solid | 4 (57.1%) | 2 (9.1%) | |
Solid with small cystic changes | 2 (28.6%) | 6 (27.3%) | |
Cystic and solid | 1 (14.3%) | 11 (50.0%) | |
Completely cystic | 0 | 3 (13.6%) | |
Mean absolute enhancement value in arterial phase (HU) | 23.3 (14.1–50.0) | 28.8 (13.2–55.7) | 0.413 |
Mean absolute enhancement value in portal venous phase (HU) | 42.8 (23.0–64.3) | 45.7 (25.6–70.2) | 0.442 |