Complications- cholecystitis
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Gangrenous cholecystitis: necrosis w/ risk of empyema and perforation
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Emphysematous cholecystitis: infection by gas-forming organisms (air in GB wall)
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Perforation: ~10% of cases, due to delay in diagnosis; pericholecystic abscess forms
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Post CCY: bile duct leak, BD injury or retained stones, cystic duct remnant, sphincter of Oddi dysfxn