Comparison between hepatic and hepatic/extrahepatic cysts vs extrahepatic cysts
| Characteristics | Type I and III hepatic and combined 126 patients Age 63 (4-88)* | Type II extrahepatic 9 patients Age 61 (43–79 years)* | P values |
| Males (%) | 96/113 (85%) | 2/9 (22%) | 0.0001 |
| Japanese patients (%) | 80/126 (63%) | 5/9 (55%) | 0.7257 |
| Associated diseases (%) | 111/126 (88%) | 6/9 (66%) | 0.1003 |
| Cirrhosis (%) | 52/126 (41%) | 0/9 (0%) | 0.0126 |
| Portal hypertension (%) | 40/108 (37%) | 0/9 (0%) | 0.0269 |
| Hepatic, biliary or pancreatic neoplasms (%) | 23/126 (18%) | 0/9 (0%) | 0.3590 |
| Incorrect diagnosis by imaging modalities (%) | 42/109 (38%) | 5/6 (83%) | 0.0409 |
| Solitary cysts (%) | 4/126 (3%) | 9/9 (100%) | 0.0001 |
| Dilated biliary tract (%) | 43/117 (37%) | 4/9 (44%) | 0.7263 |
| Obstructive jaundice (%) | 14/117 (12%) | 4/9 (44%) | 0.0237 |
| Cholangitis (%) | 13/95 (14%) | 1/9 (11%) | 1.0000 |
| Surgical interventions (%) | 53/126 (42%) | 8/9 (89%) | 0.0111 |
| Therapeutic misadventures (%) | 19/53 (36%) | 1/8 (12.5) | 0.2532 |
| Mortality rate (%) | 28/113 (25%) | 1/9 (11%) | 0.6846 |
*Median age and range.