|
| Acute acalculous cholecystitis on US | No acute acalculous cholecystitis on US | Acute acalculous cholecystitis on CT | No acute acalculous cholecystitis on CT |
| Histology showing acute acalculous cholecystitis | 5 | 11 | 8 | 8 |
| Negative histology for acute acalculous cholecystitis | 1 | 19 | 3 | 17 |