Subtypes

Acute cholecystitis

Chronic cholecystitis

Chronic perforative cholecystitis

Emphysematous cholecystitis

Gangrenous cholecystitis

May Cause

Acute perigastric inflammation

Biliary-enteric fistula

Diffuse gallbladder wall thickening

Duodenal narrowing or obstruction

Duodenal wall thickening

Gastric outlet obstruction

Nonvisualization of gallbladder

Paralyzed hemidiaphragm

Sentinel loop

Starry-sky liver

Unilaterally elevated diaphragm

May Be Caused by

Cystic duct obstruction