CHORUS

Collaborative Hypertext of Radiology

Liver and biliary system

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emphysematous cholecystitis

• "ring of air" in RUQ
• US: bright echos in GB wall with "dirty shadowing"
• DDx: pneumatosis coli, lipomatosis of GB (rare!)
• follow plain xray with U/S

• males (3:1), esp. diabetics
• usually acalculous
• high mortality

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Copyright © 2013, Charles E. Kahn, Jr.