Table 3.
Imaging features of biliary tract intraductal papillary mucinous neoplasm (n = 19)
| Feature | n (%) |
| Biliary stones (n = 12) | |
| Proximal | 10 (52.6) |
| Proximal and distal | 2 (10.5) |
| Cholecystolithiasis | 0 (0.0) |
| Dilated bile duct (n = 19) | |
| Proximal | 6 (31.6) |
| Proximal and distal | 13 (68.4) |
| Cyst | 10 (52.6) |
| Lesion | 10 (52.6) |
| Liver atrophy | 7 (36.8) |
| Imaging examination | |
| Ultrasonography | 19 (100) |
| Computed tomography | 15 (78.9) |
| Magnetic resonance imaging | 12 (63.2) |
| Intraoperative choledochoscopy | 8 (42.1) |
| Endoscopic retrograde cholangiography | 4 (21.1) |