Table 2.
Conventional B mode ultrasound findings of serous pancreatic neoplasia n (%)
| Characteristic | SPN lesions (n = 287) |
| Location | |
| Head/neck | 113 (39.3) |
| Body | 89 (31.0) |
| Tail | 85 (29.6) |
| Size of lesions (mm) | |
| mean ± SD | 38.7 ± 26.2 |
| Range | 4-160 |
| Number of lesions | |
| Single | 281 (97.9) |
| Multiple | 6 (2.1) |
| B mode aspect | |
| Microcystic mix | 31 (10.8) |
| Macrocystic | 96 (33.4) |
| Solid and cystic | 133 (46.3) |
| Solid | 27 (9.4) |
| B mode echogenicity | |
| Anechoic | 10 (3.4) |
| Hypoechoic | 271 (94.4) |
| Hyperechoic | 6 (2.2) |
| CDI vessel detectable | |
| Avascular | 228 (79.4) |
| Macrovessels detectable | 59 (20.6) |
| CDI vascular pattern (n = 59 with macrovessels) | |
| Central artery | 26 (44.1) |
| Typical spoke wheel appearance | 21 (35.6) |
| No specifics | 12 (20.3) |
SPN: Serous pancreatic neoplasia; CDI: Color Doppler imaging.