| VARIABLES | Number n = 304 | % |
| Solid masses | 200 | 65.8 |
| Diffuse pathology | 138 | 45.4 |
| Dilatation of the bile ducts | 120 | 39.5 |
| Fluid masses | 70 | 23 |
| Posttraumatic pathology | 10 | 3.3 |