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What is the pathophysiology of cholecystitis?

Author

John Campbell

Updated on March 11, 2026

What is the pathophysiology of cholecystitis?

In most cases, gallstones blocking the tube leading out of your gallbladder cause cholecystitis. This results in a bile buildup that can cause inflammation. Other causes of cholecystitis include bile duct problems, tumors, serious illness and certain infections.

What is the pathophysiology of gallstones?

Pathophysiology. Cholesterol gallstones are formed mainly due to over secretion of cholesterol by liver cells and hypomotility or impaired emptying of the gallbladder. In pigmented gallstones, conditions with high heme turnover, bilirubin may be present in bile at higher than normal concentrations.

Is cholecystitis caused by bacteria?

Acute cholecystitis (AC) is one of the most common surgical diseases. Bacterial infection accounts for 50% to 85% of the disease’s onset.

What is the most common cause of acute calculous cholecystitis?

Acute cholecystitis—inflammation of the gall bladder—is most often caused by gall stones. Gall stones are one of the most common disorders of the gastrointestinal tract, affecting about 10% of people in Western society. More than 80% of people with gall stones are asymptomatic.

What pathological symptom is typical for an cholecystitis during percussion?

The most common presenting symptom of acute cholecystitis is upper abdominal pain. Signs of peritoneal irritation may be present, and in some patients, the pain may radiate to the right shoulder or scapula. Frequently, the pain begins in the epigastric region and then localizes to the right upper quadrant (RUQ).

What is cholangitis and cholecystitis?

Cholecystitis is an inflammation of the gallbladder wall, usually caused by obstruction of the bile ducts by gallstones, and cholangitis is inflammation of the bile ducts (Thomas, 2019).

How does cholecystitis differ from cholelithiasis?

Cholelithiasis and cholecystitis both affect your gallbladder. Cholelithiasis occurs when gallstones develop. If these gallstones block the bile duct from the gallbladder to the small intestine, bile can build up in the gallbladder and cause inflammation. This inflammation is called cholecystitis.

What infections can cause cholecystitis?

What causes cholecystitis?

  • Bacterial infection in the bile duct system. The bile duct system is the drainage system that carries bile from your liver and gallbladder into the first part of your small intestine (the duodenum).
  • Tumors of the pancreas or liver.
  • Reduced blood supply to the gallbladder.
  • Gallbladder sludge.

What is the difference between cholecystitis and cholangitis?

What IV fluids are given for cholecystitis?

The current Sanford guide recommendations include piperacillin/tazobactam (Zosyn, 3.375 g IV q6h or 4.5 g IV q8h), ampicillin/sulbactam (Unasyn, 3 g IV q6h), or meropenem (Merrem, 1 g IV q8h). In severe life-threatening cases, the Sanford Guide recommends imipenem/cilastatin (Primaxin, 500 mg IV q6h).

What is Calculous cholecystitis?

Calculous cholecystitis is the most common, and usually less serious, type of acute cholecystitis. It accounts for around 95% of all cases. Calculous cholecystitis develops when the main opening to the gallbladder, called the cystic duct, gets blocked by a gallstone or by a substance known as biliary sludge.