Definition - acute or chronic cholecystitis in the absence of stones
Pathogenesis - typically due to gallbladder ischemia, stasis
Risk Factors
DM,
immunosuppression,
ICU admission,
trauma patient,
TPN,
sepsis
Clinical Features - 20% of pts /w acute cholecystitis
Dx - same as above;
Tx - AB, cholecystectomy, if pts unstable → cholecystostomy