"epidemiologymost common in those with gallstonesfat, fertile (20-40 years), female patients"
"presentation"
"pathophysiology95% of cases are due to impacted gallstones"
"investigation"
"treatment"
"prognosis"
"US best test to confirm acute cholecystitis"
Expected headings
"This is a basic article for medical students and other non-radiologists"
"Ultrasound"
"CT"
"This is a summary article; read more in our article on acute cholecystitis."