Gallstone Disease Overview

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Questions and Answers

What is the medical term for gallstone disease?

  • Cholecystitis
  • Cholelithiasis (correct)
  • Cholesterolosis
  • Cholagogues

Which component is NOT found in bile?

  • Fatty acids (correct)
  • Cholesterol
  • Bile salts
  • Bilirubin

What happens if the balance of bile components is disrupted?

  • It enhances fat absorption in the intestine.
  • It causes bile to remain liquid.
  • It eliminates cholesterol more efficiently.
  • It can lead to the formation of gallstones. (correct)

Which condition occurs if a gallstone obstructs the neck of the gallbladder?

<p>Cholecystitis (A)</p> Signup and view all the answers

What is the most common type of gallstones?

<p>Cholesterol stones (C)</p> Signup and view all the answers

What diagnostic method is primarily used to detect gallstones in modern practice?

<p>Ultrasound (B)</p> Signup and view all the answers

What can occur if a gallstone blocks the common bile duct?

<p>Jaundice (A)</p> Signup and view all the answers

In which age group are cholesterol gallstones most commonly found?

<p>40s (C)</p> Signup and view all the answers

What does ERCP stand for?

<p>Endoscopic Retrograde Cholangiopancreatography (D)</p> Signup and view all the answers

What is the primary purpose of injecting dye into the biliary tree during an ERCP?

<p>To visualize the biliary tree on an imaging study (D)</p> Signup and view all the answers

What condition occurs when a large gallstone erodes through the gallbladder wall into the small intestine?

<p>Gallstone ileus (B)</p> Signup and view all the answers

What imaging technique can show air in the biliary tree, indicating a possible gallstone ileus?

<p>CT scan or X-ray (D)</p> Signup and view all the answers

What is a common complication of a gallstone when it obstructs the common bile duct?

<p>Acute pancreatitis (D)</p> Signup and view all the answers

What type of cancer can develop from chronic inflammation of the gallbladder?

<p>Gallbladder carcinoma (A)</p> Signup and view all the answers

Which organism is associated with a carrier state that can increase the risk of gallbladder carcinoma?

<p>Salmonella typhi (C)</p> Signup and view all the answers

What can cause pancreatitis aside from gallstones?

<p>Chronic alcohol consumption (A)</p> Signup and view all the answers

What is typically the result when a gallstone obstructs pancreatic enzyme flow?

<p>Auto-digestion of the pancreas (B)</p> Signup and view all the answers

What is an essential characteristic that distinguishes air in the biliary tree from normal anatomy?

<p>Air should never be present in the gallbladder or biliary tree (B)</p> Signup and view all the answers

What type of gallstones are at risk of formation due to extra vascular hemolysis?

<p>Black pigment stones (B)</p> Signup and view all the answers

What is the primary treatment to resolve gallstone disease?

<p>Cholecystectomy (D)</p> Signup and view all the answers

Which clinical feature is a hallmark sign of acute cholecystitis?

<p>Positive Murphy's sign (D)</p> Signup and view all the answers

What causes brown pigment stones to form in the gallbladder?

<p>Bacterial glucuronidase activity (A)</p> Signup and view all the answers

Which of the following symptoms is characteristic of biliary colic?

<p>Episodic right upper quadrant pain (B)</p> Signup and view all the answers

How does ursodeoxycholic acid help in managing gallstones?

<p>Decreases cholesterol saturation in bile (C)</p> Signup and view all the answers

What is a common complication of choledocholithiasis?

<p>Cholangitis (C)</p> Signup and view all the answers

When a gallstone obstructs the cystic duct, what condition does this lead to?

<p>Acute cholecystitis (A)</p> Signup and view all the answers

Which of the following can lead to an increase in bilirubin levels, resulting in gallstone formation?

<p>Extra vascular hemolysis (D)</p> Signup and view all the answers

What is a significant finding on ultrasound that suggests acute cholecystitis?

<p>Thickened gallbladder wall (A)</p> Signup and view all the answers

Which demographic is least likely to present with gallstone symptoms?

<p>Children (B)</p> Signup and view all the answers

What usually triggers symptoms of biliary colic?

<p>Fatty meals (C)</p> Signup and view all the answers

What is a significant cause of increased cholesterol levels in bile that can lead to gallstone formation?

<p>Hormonal changes (C)</p> Signup and view all the answers

What is the relationship between bilirubin conjugation and liver function in patients with cirrhosis?

<p>Poor conjugation results in increased bilirubin stones (B)</p> Signup and view all the answers

What factor related to pregnancy contributes to the risk of cholesterol gallstones?

<p>Increased progesterone levels (A)</p> Signup and view all the answers

What happens to the gallbladder during acute cholecystitis as a result of obstruction?

<p>It becomes inflamed and ischemic (A)</p> Signup and view all the answers

Which condition is associated with an underproduction of bile salts, contributing to the risk of cholesterol gallstones?

<p>Cirrhosis (A)</p> Signup and view all the answers

Rapid weight loss contributes to gallstone risk because it affects which of the following?

<p>Cholesterol mobilization (A)</p> Signup and view all the answers

What condition increases the risk of gallstones due to inflammation of the ileum?

<p>Crohn's disease (A)</p> Signup and view all the answers

What role do bile acids play in cholesterol gallstone formation?

<p>They emulsify cholesterol in bile. (D)</p> Signup and view all the answers

Which medication class is known to inhibit bile acid synthesis and increase gallstone risk?

<p>Fibrates (C)</p> Signup and view all the answers

When unconjugated bilirubin levels rise, what type of gallstones are more likely to form?

<p>Pigment stones (A)</p> Signup and view all the answers

Which of the following results in decreased absorption of bile salts and increases gallstone risk?

<p>Cystic fibrosis (A)</p> Signup and view all the answers

What is the primary composition of pigment stones?

<p>Calcium bilirubinate (A)</p> Signup and view all the answers

Why are cholesterol gallstones termed 'radiolucent'?

<p>They cannot be seen on x-ray. (D)</p> Signup and view all the answers

What lifestyle factor increases the risk of gallstones by leading to obesity?

<p>Sedentary behavior (B)</p> Signup and view all the answers

Why might a person taking bile acid resins be at risk for developing gallstones?

<p>They prevent intestinal reabsorption of bile acids. (C)</p> Signup and view all the answers

What symptom occurs when a gallstone blocks the common bile duct?

<p>Jaundice (C)</p> Signup and view all the answers

What is the risk associated with chronic cholecystitis?

<p>Gallbladder carcinoma (D)</p> Signup and view all the answers

What finding is characteristic of a porcelain gallbladder?

<p>Calcium deposition in the walls (C)</p> Signup and view all the answers

What typically causes acalculous cholecystitis?

<p>Gallbladder ischemia (A)</p> Signup and view all the answers

Which of the following pathogens is primarily responsible for AIDS cholangiopathy?

<p>Cryptosporidium (B)</p> Signup and view all the answers

What classic symptom triad is associated with ascending cholangitis?

<p>Fever, jaundice, abdominal pain (D)</p> Signup and view all the answers

What laboratory finding is characteristic of cholestasis in ascending cholangitis?

<p>Increased Alk Phos (A)</p> Signup and view all the answers

What condition might show elevated eosinophil levels as part of its diagnosis?

<p>Clonorchiasis (C)</p> Signup and view all the answers

Which procedure is commonly used to drain the biliary tree in cases of cholangitis?

<p>Endoscopic sphincterotomy (C)</p> Signup and view all the answers

What is a common cause for thickening of the gallbladder wall observable via imaging?

<p>Cholecystitis (A)</p> Signup and view all the answers

Which of the following antibiotic combinations is appropriate for treating ascending cholangitis?

<p>Ciprofloxacin and Metronidazole (B)</p> Signup and view all the answers

What might happen if a gallstone migrates into the cystic duct?

<p>Biliary colic (C)</p> Signup and view all the answers

What condition is commonly seen in critically ill patients with no gallstones visible but evidence of cholecystitis?

<p>Acalculous cholecystitis (B)</p> Signup and view all the answers

What can cause biliary sludge in the gallbladder?

<p>Gallbladder ischemia and stasis of bile flow (C)</p> Signup and view all the answers

The medical name for gallstone disease is ______.

<p>cholelithiasis</p> Signup and view all the answers

Bile contains bilirubin, bile salts, and ______.

<p>cholesterol</p> Signup and view all the answers

If the gallstone obstructs the neck of the gallbladder, this condition is called ______.

<p>cholecystitis</p> Signup and view all the answers

Cholesterol gallstones are usually not visible on x-ray and are referred to as ______.

<p>radiolucent</p> Signup and view all the answers

The primary method used to diagnose gallstone disease in the modern era is ______.

<p>ultrasound</p> Signup and view all the answers

Gallstones made up of cholesterol commonly occur in people in their ______.

<p>40s</p> Signup and view all the answers

When a gallstone obstructs pancreatic juice flow, it can lead to acute ______.

<p>pancreatitis</p> Signup and view all the answers

If a gallstone is very large and enters the intestines, it can cause intestinal ______.

<p>obstruction</p> Signup and view all the answers

When bile can't flow through the common bile duct, it allows bacteria to ascend and infect the ______.

<p>biliary tree</p> Signup and view all the answers

If a gallstone gets stuck in the cystic duct, it can cause acute ______.

<p>cholecystitis</p> Signup and view all the answers

Chronic cholecystitis may result in calcium deposition, leading to a finding known as ______ gallbladder.

<p>porcelain</p> Signup and view all the answers

The presence of biliary sludge may be seen in cases of ______ cholecystitis.

<p>acalculous</p> Signup and view all the answers

AIDS cholangiopathy is a rare complication of end-stage ______ infection.

<p>HIV</p> Signup and view all the answers

The classic presentation of ascending cholangitis includes fever, abdominal pain, and ______.

<p>jaundice</p> Signup and view all the answers

In the case of ascending cholangitis, confusion and hypotension indicate the development of ______ from the infection.

<p>sepsis</p> Signup and view all the answers

Lab values in ascending cholangitis often include a high white count and elevated ______ levels.

<p>Alkaline phosphatase (Alk Phos)</p> Signup and view all the answers

A rare cause of cholangitis is the helminth ______ sinensis, known as the Chinese liver fluke.

<p>Clonorchis</p> Signup and view all the answers

Antibiotics for cholangitis treatment need to cover gram negatives and ______.

<p>anaerobes</p> Signup and view all the answers

Patients with AIDS cholangiopathy often present with right upper quadrant ______ due to biliary strictures.

<p>pain</p> Signup and view all the answers

The flow of ______ is crucial for preventing bacterial migration up the biliary tree.

<p>bile</p> Signup and view all the answers

Murphy sign can be indicative of ______ but may not involve gallstones in acalculous cases.

<p>cholecystitis</p> Signup and view all the answers

An elderly patient presenting with symptoms of gallstones could have a rare gallbladder ______.

<p>cancer</p> Signup and view all the answers

Cholesterol gallstones are more likely to occur if you have increased levels of ______.

<p>cholesterol</p> Signup and view all the answers

With ascending cholangitis, lab results typically show an increase in both conjugated and total ______.

<p>bilirubin</p> Signup and view all the answers

Bile acids and bile salts keep cholesterol ______ in the bile.

<p>emulsified</p> Signup and view all the answers

Pregnancy is associated with increased levels of ______, which promotes cholesterol synthesis.

<p>estrogen</p> Signup and view all the answers

Obesity leads to increased total body cholesterol stores, putting individuals at risk for ______.

<p>gallstones</p> Signup and view all the answers

Patients with ______ disease cannot reabsorb bile salts properly and are at higher risk for gallstones.

<p>Crohn's</p> Signup and view all the answers

Cirrhosis can lead to decreased synthesis of bile salts, contributing to ______ gallstones.

<p>cholesterol</p> Signup and view all the answers

Pigment stones are also known as ______ stones because they originate from excess bilirubin.

<p>bilirubin</p> Signup and view all the answers

Patients who experience fat malabsorption may lose more bile acids in their ______.

<p>stool</p> Signup and view all the answers

The primary class of medication that inhibits bile acid synthesis and increases gallstone risk is ______ drugs.

<p>fibrate</p> Signup and view all the answers

The liver produces bile salts, but about ______% of them are reabsorbed in the terminal ileum.

<p>95</p> Signup and view all the answers

A significant cause of increased cholesterol levels in bile is ______, which can lead to stone formation.

<p>rapid weight loss</p> Signup and view all the answers

Estrogen promotes cholesterol synthesis and is one reason ______ are at greater risk for cholesterol gallstones.

<p>women</p> Signup and view all the answers

Cholesterol gallstones are termed 'radiolucent' because they are not ______ on x-ray.

<p>visible</p> Signup and view all the answers

ERCP involves using an endoscope to inject dye into the ______ tree.

<p>biliary</p> Signup and view all the answers

A large gallstone creating a connection between the gallbladder and the small intestine is known as ______ ileus.

<p>gallstone</p> Signup and view all the answers

When a gallstone blocks the common bile duct, it can lead to ______.

<p>pancreatitis</p> Signup and view all the answers

Chronic inflammation of the gallbladder can result in ______ carcinoma.

<p>gallbladder</p> Signup and view all the answers

Air in the biliary tree typically indicates the presence of a ______ in its wall.

<p>hole</p> Signup and view all the answers

ERCP utilizes a combination of endoscopy and ______.

<p>fluoroscopy</p> Signup and view all the answers

The classical finding on imaging for gallstone ileus is the presence of ______ in the biliary tree.

<p>air</p> Signup and view all the answers

Salmonella typhi can remain in the gallbladder in a ______ state.

<p>carrier</p> Signup and view all the answers

During ERCP, a ______ is inserted through the mouth into the duodenum.

<p>long endoscope</p> Signup and view all the answers

Gallstones can lead to complications such as ______ obstruction if they are large enough.

<p>bowel</p> Signup and view all the answers

Patients with extra vascular hemolysis are at risk for these types of gallstones due to excess ______.

<p>bilirubin</p> Signup and view all the answers

The mainstay treatment for gallstone disease is surgical removal of the ______.

<p>gallbladder</p> Signup and view all the answers

Biliary colic is characterized by episodic pain that classically radiates to the right ______.

<p>shoulder blade</p> Signup and view all the answers

Acute cholecystitis occurs when a stone obstructs the ______ duct.

<p>cystic</p> Signup and view all the answers

Patients with gallstones may be asymptomatic and often discover them incidentally during ______.

<p>imaging</p> Signup and view all the answers

Brown pigment stones tend to have more ______ compared to black stones.

<p>calcium</p> Signup and view all the answers

The structural formula of the bile acid used in gallstone therapy is ______.

<p>ursodeoxycholic acid</p> Signup and view all the answers

A classic sign of acute cholecystitis is a positive ______ sign.

<p>Murphy</p> Signup and view all the answers

Cholecystitis can result from a stone blocking the ______ outflow of bile.

<p>bile</p> Signup and view all the answers

Unconjugated bilirubin is less soluble and tends to ______ out, forming gallstones.

<p>precipitate</p> Signup and view all the answers

Patients suffering from ______ may have impaired liver function affecting bilirubin conjugation.

<p>cirrhosis</p> Signup and view all the answers

A gallstone that migrates into the common bile duct can result in symptoms such as ______.

<p>jaundice</p> Signup and view all the answers

Gallstones can lead to a serious condition called ______ when inflammation occurs.

<p>cholecystitis</p> Signup and view all the answers

One of the enzymes produced by bacteria that can convert conjugated bilirubin back into its unconjugated form is called ______.

<p>glucuronidase</p> Signup and view all the answers

Symptoms of gallstone disease can include right upper quadrant pain and ______ associated with inflammation.

<p>fever</p> Signup and view all the answers

Flashcards

Cholelithiasis

Medical term for gallstone disease

Bile components

Bile contains bilirubin, bile salts, and cholesterol.

Gallstone formation

Imbalance of bile components causes precipitation and stone formation.

Biliary tree

System of ducts that transport bile from liver to gallbladder to intestines

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Cholecystitis

Inflammation of the gallbladder, often due to gallstone blockage.

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Cholesterol gallstones

Most common type, often not visible on X-ray (radiolucent).

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Gallstone consequences

Blockages can cause jaundice, pancreatitis, or intestinal obstruction.

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Diagnosis method

Modern diagnosis of gallstones primarily uses ultrasound instead of X-rays

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Extravascular Hemolysis

Condition causing excess bilirubin from heme breakdown, increasing gallstone risk.

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Cirrhosis/Liver Disease

Impaired liver function affecting bilirubin conjugation, raising gallstone risk.

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Biliary Tree Infections

Bacterial infections converting conjugated bilirubin to unconjugated bilirubin (less soluble), increasing stone risk.

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Brown Gallstones

Gallstones with higher calcium content, often from bacterial infections.

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Black Gallstones

Gallstones associated with hemolysis and liver disease.

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Asymptomatic Gallstones

Gallstones present without noticeable symptoms.

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Cholecystectomy

Surgical removal of the gallbladder to treat gallstone issues.

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Biliary Colic

Episodic, right upper quadrant pain, often radiating to the shoulder, triggered by gallbladder contraction against a stone.

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Acute Cholecystitis

Inflammation of the gallbladder due to stone blockage, causing pain and potentially serious complications.

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Murphy's Sign

Sharp pain when pressure is applied to the right upper quadrant during deep inhalation, a key diagnostic sign for acute cholecystitis.

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Choledocholithiasis

Stone lodged in the common bile duct, causing blockage and potential complications like jaundice and cholangitis.

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Ursodeoxycholic Acid

Medical therapy for cholesterol gallstones; reduces cholesterol secretion into bile.

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Jaundice

Yellowing of the skin and eyes due to a build up of bilirubin.

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Elevated Alk Phos

Elevated levels of the liver enzyme Alkaline Phosphatase, potentially indicating obstruction in the biliary tract.

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Peritonitis

Inflammation of the peritoneum, a membrane lining the abdominal cavity, often a complication of other conditions, like ruptured gall bladder.

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Gallstone risk in elderly

Elderly patients with gallstone symptoms may have rare gallbladder cancer. This is because gallstone disease is uncommon in this age group.

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Cholesterol gallstones - risk factors

Increased cholesterol levels or decreased bile acids/salts increase the likelihood of cholesterol gallstones.

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Estrogen and gallstones

Estrogen promotes cholesterol synthesis, increasing the risk of cholesterol gallstones. This explains why women have a greater risk.

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Pregnancy and gallstones

Pregnancy and multiple pregnancies are risk factors for cholesterol gallstones due to increased estrogen and progesterone, which affects gallbladder emptying.

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Obesity & rapid weight loss

Obesity and rapid weight loss increase cholesterol in bile, raising the risk for cholesterol gallstones.

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Bile salt reabsorption

Bile salts are produced in the liver, mostly reabsorbed in the terminal ileum (95%).

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Liver under-production of bile salts

Reduced bile salt production by the liver leads to lower bile salt levels, increasing the risk of cholesterol gallstones.

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Poor bile salt absorption

Impaired absorption of bile salts in the terminal ileum reduces bile salt levels, a risk factor for cholesterol gallstones.

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Cirrhosis and Gallstones

Cirrhosis (liver damage) reduces bile salt production, increasing the risk of cholesterol gallstones.

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Crohn's Disease & Gallstones

Crohn's disease inflammation in the ileum causes reduced bile salt absorption, increasing gallstone risk.

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Cystic Fibrosis & Gallstones

Cystic fibrosis can lead to pancreatic insufficiency, fat malabsorption, and reduced bile acid levels, increasing gallstone risk.

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Cholesterol-lowering drugs & gallstones

Some cholesterol-lowering drugs (e.g., fibrates, bile acid resins) can inhibit bile acid synthesis or prevent reabsorption, potentially increasing the risk of gallstones.

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Pigment stones

Gallstones composed of calcium bilirubinate, they result from high levels of unconjugated bilirubin.

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Unconjugated bilirubin

Unconjugated bilirubin is less soluble in water than conjugated bilirubin, and high levels can lead to gallstone formation.

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Radiopaque gallstones

Pigment stones are visible on X-rays, unlike cholesterol gallstones.

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Bile Salt Function

Bile acids and salts emulsify cholesterol in the bile, keeping cholesterol dissolved, thus preventing gallstone formation.

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Ascending Cholangitis

Infection of the bile ducts, often due to bacteria migrating up from the gut, when the bile flow is blocked.

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Charcot's Triad

Classic symptoms of ascending cholangitis: fever, abdominal pain, and jaundice.

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Reynolds' Pentad

Ascending cholangitis with Charcot's triad plus confusion and low blood pressure—signaling sepsis.

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Acalculous Cholecystitis

Inflammation of gallbladder without gallstones, often due to bile flow issues.

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AIDS Cholangiopathy

Bile duct damage in people with advanced HIV, often due to infections.

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Porcelain Gallbladder

Gallbladder with calcium deposits, significantly increased risk of cancer.

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Biliary Colic

Pain in upper right abdomen caused by a gallstone lodged in the cystic duct.

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Acute Cholecystitis

Inflammation of the gallbladder, usually caused by a gallstone.

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Elevated Bilirubin

High levels of bilirubin in blood, often signaling issues with bile ducts.

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Elevated Alk Phos

High levels of Alkaline Phosphatase, often indicating biliary blockage.

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Choledocholithiasis

Gallstones blocking the common bile duct

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Biliary Sludge

Thickened bile in the gallbladder, often seen in acalculous cholecystitis.

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Endoscopic Sphincterotomy

Procedure using a scope to treat bile duct blockages.

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ERCP

Endoscopic Retrograde Cholangiopancreatography; a procedure using an endoscope to visualize and treat problems in the bile and pancreatic ducts.

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Gallstone Ileus

A rare condition where a large gallstone erodes through the gallbladder wall, enters the intestines, and causes a bowel obstruction.

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Pancreatitis

Inflammation of the pancreas, often caused by gallstones or alcohol.

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Gallbladder Carcinoma

A rare cancer of the gallbladder, often linked to chronic inflammation.

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Salmonella Typhi

A type of bacteria that can cause typhoid fever and may remain in the gallbladder, increasing the risk for gallbladder cancer.

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Biliary Tree

A network of ducts carrying bile from the liver and gallbladder to the small intestine.

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Cholelithiasis

The presence of gallstones in the gallbladder.

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Gallstones

Solid masses formed in the gallbladder from bile components like cholesterol or bilirubin.

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Endoscope

A long, thin, flexible tube with a camera at the end used for viewing internal organs.

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Fluoroscopy

A medical imaging technique that uses X-rays to create real-time moving images of internal structures.

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Gallstone Disease (Cholelithiasis)

Formation and presence of gallstones in the gallbladder, where bile components precipitate into solid material

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Bile components

Bile contains bilirubin, bile salts, and cholesterol; crucial for fat digestion and elimination of cholesterol

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Cholesterol Gallstones

Most common type, usually radiolucent (not visible on X-ray), often linked with increased cholesterol, decreased bile salts or poor absorption of bile salts

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Cholecystitis

Inflammation of the gallbladder, usually caused by a gallstone lodged in the cystic duct.

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Gallstone Obstruction

Gallstones blocking the flow of bile causing various issues

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Gallstone consequences

Blockage in the bile ducts can lead to jaundice, pancreatitis, or intestinal obstruction

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Gallstone risk in people 40s+

Cholestoral gallstones are common in middle-aged people.

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Modern Diagnosis method

Ultrasound is primarily used to diagnose gallstones, replacing X-rays

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Extravascular Hemolysis & Gallstones

Excess bilirubin from heme breakdown increases gallstone risk.

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Cirrhosis/Liver Disease & Gallstones

Impaired liver function hinders bilirubin conjugation, increasing gallstone risk.

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Biliary Tree Infections & Gallstones

Bacterial enzymes convert conjugated bilirubin to unconjugated (less soluble), forming stones.

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Brown Gallstones

Gallstones with higher calcium content, often from bacterial infections.

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Black Gallstones

Gallstones associated with hemolysis or liver disease.

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Asymptomatic Gallstones

Gallstones present without noticeable symptoms.

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Cholecystectomy

Surgical removal of the gallbladder.

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Biliary Colic

Episodic right upper quadrant pain, radiating to the right shoulder, often after eating.

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Acute Cholecystitis

Inflammation of the gallbladder due to stone blockage, causing pain and potential complications.

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Murphy's Sign

Sharp pain when pressure is applied to the right upper quadrant during inhalation.

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Choledocholithiasis

Stone lodged in the common bile duct, causing blockage and potential complications.

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Ursodeoxycholic Acid

Medical therapy for cholesterol gallstones; reduces cholesterol secretion into bile.

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Jaundice

Yellowing of the skin and eyes due to a buildup of bilirubin.

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Elevated Alk Phos

High levels of Alkaline Phosphatase, often indicating biliary blockage.

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Biliary Sludge

Thickened bile in the gallbladder, often seen in acalculous cholecystitis.

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Gallstone risk in elderly

Elderly patients with gallstone symptoms might have rare gallbladder cancer due to gallstone disease's uncommon occurrence in this age group.

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Cholesterol gallstones - risk factors

High cholesterol or low bile salts increase the chance of cholesterol gallstones.

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Estrogen and gallstones

Estrogen promotes cholesterol synthesis, increasing cholesterol gallstone risk, notably in women.

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Pregnancy and gallstones

Pregnancy's increased estrogen and altered gallbladder emptying increases the risk of cholesterol gallstones.

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Obesity & rapid weight loss

Obesity and rapid weight loss increase cholesterol in the bile, elevating the risk of cholesterol gallstones.

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Bile salt reabsorption

Bile salts are mostly reabsorbed in the small intestine, primarily the terminal ileum.

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Liver under-production of bile salts

Insufficient bile salt production by the liver lowers bile salt levels, increasing the risk of cholesterol gallstones.

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Poor bile salt absorption

Impaired absorption of bile salts in the terminal ileum reduces bile salt levels, increasing the risk of cholesterol gallstones.

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Cirrhosis and Gallstones

Cirrhosis (liver scarring) reduces bile salt production, increasing the risk of cholesterol gallstones.

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Crohn's Disease & Gallstones

Crohn's disease inflammation in the ileum reduces bile salt absorption, increasing gallstone risk.

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Cystic Fibrosis & Gallstones

Cystic fibrosis can lead to fat malabsorption and reduced bile acid levels increasing gallstone risk.

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Cholesterol-lowering drugs & gallstones

Some cholesterol-lowering drugs can reduce bile acid synthesis or prevent reabsorption, potentially increasing gallstone risk.

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Pigment stones

Gallstones composed of calcium bilirubinate, resulting from excess unconjugated bilirubin.

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Unconjugated bilirubin

Unconjugated bilirubin is less soluble in water, leading to gallstone formation when levels are high.

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Radiopaque gallstones

Pigment gallstones, unlike cholesterol stones, are visible on X-rays due to their composition.

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Ascending Cholangitis

Infection of the bile ducts, often caused by bacteria travelling up from the gut when bile flow is blocked.

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Charcot's Triad

Classic symptoms of ascending cholangitis: fever, abdominal pain, and jaundice.

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Reynolds' Pentad

Ascending cholangitis with Charcot's triad plus confusion and hypotension—signaling sepsis.

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Acalculous Cholecystitis

Inflammation of the gallbladder without gallstones, often due to bile flow issues.

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AIDS Cholangiopathy

Bile duct damage in people with advanced HIV, often due to infections.

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Porcelain Gallbladder

Gallbladder with calcium deposits, significantly increased risk of cancer.

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Biliary Colic

Pain in upper right abdomen caused by a gallstone lodged in the cystic duct.

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Acute Cholecystitis

Inflammation of the gallbladder, usually caused by a gallstone.

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Elevated Bilirubin

High levels of bilirubin in blood, often signaling issues with bile ducts.

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Elevated Alk Phos

High levels of Alkaline Phosphatase, often indicating biliary blockage.

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Choledocholithiasis

Gallstones blocking the common bile duct

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Biliary Sludge

Thickened bile in the gallbladder, often seen in acalculous cholecystitis.

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Endoscopic Sphincterotomy

Procedure using a scope to treat bile duct blockages.

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ERCP

Endoscopic Retrograde Cholangiopancreatography; a procedure using an endoscope to visualize and treat problems in the bile and pancreatic ducts.

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Gallstone Ileus

A rare condition where a large gallstone erodes through the gallbladder wall, enters the intestines, and causes a bowel obstruction.

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Pancreatitis

Inflammation of the pancreas, often caused by gallstones or alcohol.

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Gallbladder Carcinoma

A rare cancer of the gallbladder, often linked to chronic inflammation.

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Salmonella Typhi

A type of bacteria that can cause typhoid fever and may remain in the gallbladder, increasing the risk for gallbladder cancer.

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Biliary Tree

A network of ducts carrying bile from the liver and gallbladder to the small intestine.

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Cholelithiasis

The presence of gallstones in the gallbladder.

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Gallstones

Solid masses formed in the gallbladder from bile components like cholesterol or bilirubin.

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Endoscope

A long, thin, flexible tube with a camera at the end used for viewing internal organs.

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Fluoroscopy

A medical imaging technique that uses X-rays to create real-time moving images of internal structures.

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Study Notes

Gallstone Disease: Overview

  • Cholelithiasis: Medical term for gallstone disease.
  • Bile Composition: Bile contains bilirubin (heme breakdown product), bile salts (fat absorption), and cholesterol (body's cholesterol elimination). A delicate balance is crucial to prevent precipitation.
  • Gallstone Formation: Imbalance in bile components leads to solid substance precipitation, accumulation, and stone formation.
  • Biliary Tree Anatomy: Bile forms in the liver, gets concentrated in the gallbladder, and is released into the duodenum when eating. Gallstones can obstruct bile flow.

Types of Gallstones

  • Cholesterol Gallstones: Most common type, often not visible on X-ray (radiolucent), diagnosed with ultrasound.
  • Risk Factors (Cholesterol Gallstones):
    • Age: 40s most common, rare in children/elderly; elderly patient with symptoms warrants cancer consideration.
    • Increased Cholesterol: Excess estrogen (women, pregnancy), obesity, rapid weight loss.
    • Decreased Bile Salts: Liver underproduction, poor absorption (terminal ileum issues like Crohn's disease, cystic fibrosis), certain medications (clofibrate, bile acid resins).
  • Pigment Gallstones (Bilirubin Stones): Contain excess bilirubin, composed of calcium bilirubinate, visible on X-ray (radiopaque), black/brown color.
    • Risk Factors: Increased unconjugated bilirubin (hemolysis, cirrhosis, biliary infections, bacterial glucuronidase).

Clinical Syndromes

  • Asymptomatic Gallstones: Often discovered incidentally.
  • Biliary Colic: Episodic RUQ pain radiating to right shoulder blade, usually after eating a fatty meal (gallbladder contract against a stone).
  • Acute Cholecystitis: Inflammation of the gallbladder due to cystic duct obstruction by a stone, resulting in localized pain, fever, and elevated white blood cell count.
    • Murphy's Sign: Sharp pain on deep breath during RUQ palpation.
  • Choledocholithiasis: Gallstone in the common bile duct, obstructing bile flow, leading to jaundice, elevated Alk Phos (more than AST/ALT), potentially cholangitis.
  • Chronic Cholecystitis: Untreated acute cholecystitis, with chronic inflammation and calcium deposition (porcelain gallbladder), high risk of gallbladder cancer.
  • Acalculous Cholecystitis: Acute cholecystitis without gallstones, due to gallbladder ischemia/bile stasis (critically ill patients). Characterized by biliary sludge.
  • AIDS Cholangiopathy: Rare complication of end-stage HIV infection (low CD4 count), chronic infection (cryptosporidium, CMV), biliary tree strictures.
  • Ascending Cholangitis: Bacterial infection of the biliary tree from blocked bile flow and ascending bacteria from GI tract, includes fever, abdominal pain, jaundice (Charcot's triad). Sepsis and shock (Reynolds pentad). Gram-negative bacteria, rarely Clonorchis sinensis.
  • Gallstone Ileus: Large gallstone erodes through gallbladder wall into small intestine. Presents with bowel obstruction and air in biliary tree on imaging.

Treatments

  • Cholecystectomy: Surgical gallbladder removal, the mainstay treatment for most gallstone-related problems.
  • Ursodeoxycholic Acid (UDCA): Bile acid, used sometimes medically as a therapy for cholesterol stones (but not pigment stones), less effective, used in patients who decline surgery.
  • ERCP Endoscopic retrograde cholangiopancreatography, uses endoscope with camera to look at biliary tree and treat obstructions such as gallstones or strictures. Allows for stone extraction or stent placement.

Additional Disorders

  • Acute Pancreatitis: Gallstones obstructing pancreatic ducts can trigger pancreatitis.
  • Gallbladder Carcinoma: Rare malignancy of the gallbladder, often associated with chronic cholecystitis (porcelain gallbladder or chronic salmonella infection).

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