| Anomalies | N (Percentages) |
| Complete thrombosis | 50 (71.4%) |
| Portal cavernoma | 12 (17%) |
| Splenic varices | 10 (14%) |
| Superior mesenteric vein extension | 6 (8.4%) |
| Splenic vein thrombosis | 4 (5.6%) |
| Extension to the inferior vena cava | 2 (2.8%) |
| Extension to the spleno-mesenteric trunk | 2 (2.8%) |