Table 2.
CT imaging features of patients with MFP and PDAC.
| CT findings | MFP (n = 30) | PDAC (n = 79) | p-value |
|---|---|---|---|
| Location | 0.150 | ||
| Head and neck | 24 (80%) | 52 (65.8%) | |
| Body and tail | 6 (20%) | 27 (34.2%) | |
| Shape (oval/lobulation/ irregular) | 20/3/7 | 62/5/12 | 0.443 |
| Margin | 0.707 | ||
| Well-defined | 2 (6.7%) | 9 (11.4%) | |
| Ill-defined | 28 (93.3%) | 70 (88.6%) | |
| Cystic degeneration | 8 (25.8%) | 37 (46.8%) | 0.044 |
| Calcification | 6 (20%) | 6 (7.6%) | 0.065 |
| Enhancement pattern | 0.140 | ||
| Homogeneous | 21 (70%) | 43 (54.4%) | |
| Heterogeneous | 9 (30%) | 36 (45.6%) | |
| Pancreatic ductal dilatation | 11 (36.7%) | 47 (59.5%) | 0.033 |
| Degree (low to moderate/severe) | 9/2 | 34/13 | 0.792 |
| Shape (Uniformity/Beaded expansion) | 4/7 | 39/8 | 0.005 |
| Pancreatic duct penetrating sign | 20 (66.7%) | 15 (19%) | <0.001 |
| Vascular invasion | 5 (16.7%) | 42 (53.2%) | 0.001 |
| Pancreatic sinistral portal hypertension | 4 (13.3%) | 31 (39.2%) | 0.010 |
| Peripancreatic exudation | 11 (36.7%) | 18 (22.8%) | 0.143 |
| Lymph nodes enlargement | 12 (40.0%) | 42 (53.2%) | 0.220 |
| Size (cm) | 4.05 ± 1.02 | 3.41 ± 1.16 | 0.009 |
| Arterial CT attenuation (HU) | 60.57 ± 11.24 | 51.82 ± 11.36 | <0.001 |
| Portal CT attenuation (HU) | 75.17 ± 11.04 | 71.53 ± 13.94 | 0.203 |
| Arterial enhancement ratio | 0.89 ± 0.20 | 0.66 ± 0.15 | <0.001 |
| Portal enhancement ratio | 0.89 ± 0.19 | 0.77 ± 0.17 | 0.004 |
HU, Hounsfield unit.