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Ultrasonography criteria for acute acalculous cholecystitis
| Major criteria | Minor criteria |
|---|---|
| • Gallbladder wall thickening ≥3mm |
• Gallbladder distension (>5cm) |
| • Wall edema |
• Echogenic bile (sludge) |
| • Intramural gas |
|
| • Mucosal sloughing |
|
| • Pericholecystic fluid |
|
| • Sonographic Murphy’s sign |
Two major or one major and two minor criteria are needed for diagnosis.
