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Digestive system
Digestive system


Cholecystolithiasis
Cholecystolithiasis


Gallstones, cholangiogram
Gallstones, cholangiogram


Kidney cyst with gallstones, CT scan
Kidney cyst with gallstones, CT scan


Cholelithiasis
Cholelithiasis


Gallbladder
Gallbladder


Gallbladder
Gallbladder


Gallbladder removal - series
Gallbladder removal - series


Definition:

Gallstones are hard, pebble-like deposits that form inside the gallbladder. Gallstones may be as small as a grain of sand or as large as a golf ball.

See also:



Alternative Names:

Cholelithiasis; Gallbladder attack; Biliary colic; Gallstone attack; Bile duct stone; Bile calculus; Biliary calculus



Causes, incidence, and risk factors:

The cause of gallstones varies. There are two main types of gallstones:

  • Stones made out of cholesterol. Gallstones made out of cholesterol are by far the most common type. Cholesterol gallstones have nothing to do with the cholesterol levels in the blood.
  • Stones made from too much bilirubin in the bile. Bile is a liquid made in the liver that helps the body digest fats. Bile is made up of water, cholesterol, bile salts, and other chemicals, such as bilirubin. Such stones are called pigment stones.

Gallstones are more common in women, Native Americans and other ethnic groups, and people over age 40. Gallstones may also run in families.

The following also make you more likely to develop gallstones:

  • Failure of the gallbladder to empty bile properly (this is more likely to happen during pregnancy)
  • Medical conditions that cause the liver to make too much bilirubin, such as chronic hemolytic anemia , including sickle cell anemia
  • Liver cirrhosis and biliary tract infections (pigmented stones)
  • Diabetes
  • Bone marrow or solid organ transplant
  • Rapid weight loss, particularly eating a very low-calorie diet
  • Receiving nutrition through a vein for a long period of time (intravenous feedings)


Symptoms:

Many people with gallstones have never had any symptoms. The gallstones are often discovered when having a routine x-ray, abdominal surgery, or other medical procedure.

However, if a large stone blocks either the cystic duct or common bile duct (called choledocholithiasis ), you may have a cramping pain in the middle to right upper abdomen. This is known as biliary colic. The pain goes away if the stone passes into the first part of the small intestine (the duodenum).

Symptoms that may occur include:

  • Pain in the right upper or middle upper abdomen:
    • May go away and come back
    • May be sharp, cramping, or dull
    • May spread to the back or below the right shoulder blade
    • Occurs within minutes of a meal
  • Fever
  • Yellowing of skin and whites of the eyes (jaundice)

Additional symptoms that may occur with this disease include:

  • Abdominal fullness
  • Clay-colored stools
  • Nausea and vomiting

It is important to see a doctor if you have symptoms of gallstones. Gallstones are found in many people with gallbladder cancer.



Signs and tests:

Tests used to detect gallstones or gallbladder inflammation include:

Your doctor may order the following blood tests:



Treatment:

SURGERY

Some people have gallstones and have never had any symptoms. The gallstones may not be found until an ultrasound is done for another reason. Surgery may not be needed unless symptoms begin.

In general, patients who have symptoms will need surgery either right away, or after a short period of time.

  • In the past, open cholecystectomy (gallbladder removal) was the usual procedure for uncomplicated cases. However, this is done less often now.
  • A technique called laparoscopic cholecystectomy is most commonly used now. This procedure uses smaller surgical cuts, which allow for a faster recovery. Patients are often sent home from the hospital on the same day as surgery, or the next morning.

Endoscopic retrograde cholangiopancreatography (ERCP) and a procedure called a sphincterotomy may be done to locate or treat gallstones in the common bile duct .

MEDICATION

Medicines called chenodeoxycholic acids (CDCA) or ursodeoxycholic acid (UDCA, ursodiol) may be given in pill form to dissolve cholesterol gallstones. However, they may take 2 years or longer to work, and the stones may return after treatment ends.

Rarely, chemicals are passed into the gallbladder through a catheter. The chemical rapidly dissolves cholesterol stones. This treatment is not used very often, because it is difficult to perform, the chemicals can be toxic, and the gallstones may return.

LITHOTRIPSY

Electrohydraulic shock wave lithotripsy (ESWL) of the gallbladder has also been used for selected patients who cannot have surgery. Because gallstones often come back in many patients, this treatment is not used very often anymore.



Support Groups:



Expectations (prognosis):

Gallstones develop in many people without causing symptoms. The chance of symptoms or complications from gallstones is low. Nearly all patients who have gallbladder surgery do not have their symptoms return (if the symptoms were actually caused by gallstones).



Complications:

Blockage of the cystic duct or common bile duct by gallstones may cause the following problems:



Calling your health care provider:

Call for an appointment with your health care provider if you have:

  • Pain in the right upper part of your abdomen
  • Yellowing of the skin or whites of the eyes


Prevention:

There is no known way to prevent gallstones. If you have gallstone symptoms, eating a low-fat diet and losing weight may help you control symptoms.



References:

Siddiqui T. Early versus delayed laparoscopic cholecystectomy for acute cholecystitis: a meta-analysis of randomized clinical trials. Am J Surg. 2008;195(1):40-47.

Chari RS, Shah SA. Biliary system. In: Townsend CM, Beauchamp RD, Evers BM, Mattox KL. Sabiston Textbook of Surgery. 18th ed. St. Louis, Mo: WB Saunders; 2007:chap. 54.

Afdhal N. Diseases of the gallbladder and bile ducts. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap. 159.




Review Date: 7/6/2009
Reviewed By: George F. Longstreth, MD, Department of Gastroenterology, Kaiser Permanente Medical Care Program, San Diego, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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