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  1. <Medical Topics
    Hepatology
    Approach to the Patient With Liver Disease
    • Metabolic Dysfunction–Associated Liver Disease (MASLD)
      • References
      • Pathophysiology
        • Pathophysiology references
      • Symptoms and Signs
        • Symptoms and signs reference
      • Diagnosis
        • Diagnosis references
      • More Information
      • Treatment
        • Treatment references
      • Prognosis
        • Prognosis references
      • Key Points
    • Evaluation of the Patient With a Liver Disorder
      • History
      • Physical examination
      • Testing
    • Acute Liver Failure
      • General reference
      • Etiology
        • Etiology reference
      • Pathophysiology
        • Pathophysiology reference
      • Symptoms and Signs
        • Symptoms and signs references
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Treatment references
      • Prognosis
        • Prognosis references
      • Key Points
    • Spontaneous Bacterial Peritonitis (SBP)
      • References
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment references
    • Liver Structure and Function
      • Overview of liver structure
      • Overview of bilirubin metabolism
      • Other liver functions
      • Pathophysiology
    • Ascites
      • Etiology
        • Etiology reference
      • Pathophysiology
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Treatment references
      • Key Points
    • Jaundice
      • Pathophysiology
        • Mechanisms of hyperbilirubinemia
        • Consequences
      • Etiology
      • Evaluation
        • History
        • Physical examination
        • Red flags
        • Interpretation of findings
        • Testing
      • Treatment
      • Geriatrics Essentials: Jaundice
      • Key Points
    • Inborn Metabolic Disorders Causing Hyperbilirubinemia
      • Gilbert Syndrome
        • Gilbert syndrome references
      • Crigler-Najjar Syndrome
      • Dubin-Johnson Syndrome and Rotor Syndrome
        • Dubin-Johnson syndrome
        • Rotor syndrome
      • Primary Shunt Hyperbilirubinemia
    • Portal Hypertension
      • Etiology
        • Etiology reference
      • Pathophysiology
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment references
      • Prognosis
        • Prognosis references
      • Key Points
    • Portosystemic Encephalopathy
      • Etiology
        • Precipitants
      • Pathophysiology
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment references
      • Prognosis
      • Key Points
    • Systemic Abnormalities in Liver Disease
      • Circulatory Abnormalities
      • Endocrine Abnormalities
      • Hematologic Abnormalities
      • Renal and Electrolyte Abnormalities
        • Hepatorenal syndrome
        • Renal and electrolyte abnormalities reference
      • Pulmonary Abnormalities
        • Pulmonary abnormalities references
    • The Asymptomatic Patient With Abnormal Liver Test Results
      • Aminotransferases
      • Alkaline phosphatase
      • Bilirubin
    • Postoperative Liver Dysfunction
      • Postoperative jaundice
      • Postoperative hepatitis
      • Postoperative cholestasis
    Testing for Hepatic and Biliary Disorders
    • Laboratory Tests of the Liver and Gallbladder
      • Tests for Liver Injury
        • Aminotransferases
        • Lactate dehydrogenase (LDH)
        • Tests for liver injury reference
      • Tests for Cholestasis
        • Bilirubin
        • Alkaline phosphatase (ALP)
        • Gamma–glutamyl transpeptidase (GGT)
        • 5′-Nucleotidase
        • Tests for cholestasis references
      • Tests of Hepatic Synthetic Function
        • Prothrombin time (PT) and international normalized ratio (INR)
        • Serum proteins
        • Tests of hepatic synthetic function references
      • Other Laboratory Tests
        • Ammonia
        • Serum immunoglobulins
        • Antimitochondrial antibodies
        • Other antibodies
        • Alpha-fetoprotein (AFP)
        • Tests for hepatic fibrosis
        • Other laboratory tests references
    • Imaging Tests of the Liver and Gallbladder
      • Ultrasound
      • Doppler ultrasound
      • Computed tomography (CT)
      • Magnetic resonance imaging (MRI)
      • Endoscopic retrograde cholangiopancreatography (ERCP)
      • Percutaneous transhepatic cholangiography (PTC)
      • Intraoperative cholangiography
      • Cholescintigraphy
      • Radionuclide liver scanning
      • Plain radiograph of the abdomen
      • References
    • Liver Biopsy
      • Indications
      • Contraindications
      • Other routes
      • References
    Alcohol-Related Liver Disease
    • Alcohol-Related Liver Disease
      • References
      • Risk Factors
        • Quantity of alcohol
        • Sex
        • Genetic factors
        • Nutrition or obesity
        • Other factors
        • Risk factors references
      • Pathophysiology
        • Alcohol absorption and metabolism
        • Hepatic fat accumulation
        • Endotoxins in the gut
        • Oxidative damage
        • Resultant inflammation, cell death, and fibrosis
        • Pathophysiology references
      • Pathology
      • Symptoms and Signs
        • Symptoms and signs references
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Restricting alcohol intake
        • Supportive care
        • Specific treatment
        • Treatment references
      • Prognosis
        • Prognosis references
      • Key Points
    Drugs and the Liver
    • Effects of Liver Disease on Drug Metabolism
    • Liver Injury Caused by Drugs
      • References
      • Pathophysiology
        • Patterns of liver injury
        • Pathophysiology references
      • Diagnosis
        • Diagnosis references
      • Treatment
      • Prevention
      • Key Points
    Fibrosis and Cirrhosis
    • Liver Transplantation
      • Liver donors
      • Organ distribution
      • General references
      • Procedure
        • Procedure references
      • Complications
        • Rejection
        • Hepatitis recurrence after transplantation
        • Other complications
        • Complications references
      • Prognosis
        • Prognosis references
    • Primary Biliary Cholangitis (PBC)
      • Etiology
        • Etiology references
      • Symptoms and Signs
        • Symptoms and signs reference
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Treatment references
      • Prognosis
        • Prognosis references
      • Key Points
    • Hepatic Fibrosis
      • Etiology
        • Etiology reference
      • Pathophysiology
        • Pathophysiology reference
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Treatment references
      • Key Points
    • Cirrhosis
      • General reference
      • Etiology
        • Etiology references
      • Pathophysiology
        • Complications
        • Histopathology
        • Pathophysiology references
      • Symptoms and Signs
      • Diagnosis
        • General approach
        • Laboratory tests
        • Diagnostic imaging
        • Identification of the cause
        • Liver biopsy
        • Monitoring
        • Diagnosis references
      • Estimating Disease Severity
        • Child-Turcotte-Pugh classification for severity of liver disease
        • Model for end-stage liver disease (MELD) 3.0
        • Pediatric end-stage liver disease (PELD) score
        • Estimating disease severity references
      • Treatment
        • Treatment references
      • Prognosis
        • Prognosis references
      • Key Points
    Gallbladder and Bile Duct Disorders
    • IgG4-Related Sclerosing Cholangitis
      • General references
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Treatment references
      • Key Points
    • Overview of Biliary Function
    • Cholelithiasis
      • General references
      • Pathophysiology
        • Pathophysiology reference
      • Symptoms and Signs
        • Symptoms and signs reference
      • Diagnosis
        • Diagnosis reference
      • Treatment
        • Surgery
        • Stone dissolution
        • Treatment references
      • Prognosis
        • Prognosis references
      • Key Points
    • Acalculous Biliary Pain
      • General reference
      • Diagnosis
        • Functional disorders causing acalculous biliary pain
        • Diagnosis references
      • Treatment
      • Treatment reference
    • Choledocholithiasis and Cholangitis
      • General references
      • Diagnosis
      • Treatment
        • Treatment references
      • Key Points
    • Sclerosing Cholangitis
      • Reference
    • HIV-related Cholangiopathy
      • Reference
      • Diagnosis
        • Diagnosis reference
      • Treatment
        • Treatment reference
    • Tumors of the Gallbladder and Bile Ducts
      • General references
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Treatment references
      • Key Points
    • Acute Cholecystitis
      • Acute acalculous cholecystitis
      • General references
      • Symptoms and Signs
        • Complications
        • Acute acalculous cholecystitis
        • Symptoms and signs references
      • Diagnosis
        • Acute acalculous cholecystitis
        • Diagnosis reference
      • Treatment
        • Treatment references
      • Key Points
    • Chronic Cholecystitis
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment references
    • Postcholecystectomy Syndrome
      • General references
      • Diagnosis
        • Diagnosis reference
      • Treatment
        • Treatment reference
    • Primary Sclerosing Cholangitis (PSC)
      • Reference
      • Etiology
        • Etiology references
      • Symptoms and Signs
        • Symptoms and signs references
      • Diagnosis
        • Diagnosis references
      • Treatment
        • Monitoring and surveillance
        • Treatment references
      • Key Points
    Hepatitis
    • Fulminant Hepatitis
      • Symptoms and Signs
      • Diagnosis
      • Treatment
    • Hepatitis A
      • General references
      • Symptoms and Signs
      • Diagnosis
        • Other tests
      • Treatment
      • Prevention
        • Vaccination
        • Postexposure prophylaxis
        • Prevention reference
      • Key Points
      • More Information
    • Hepatitis B, Acute
      • Transmission of hepatitis B
      • General reference
      • Symptoms and Signs
      • Diagnosis
        • Other tests
      • Treatment
      • Prevention
        • Vaccination
        • Postexposure prophylaxis
      • Key Points
      • More Information
    • Hepatitis B, Chronic
      • General references
      • Symptoms and Signs
      • Diagnosis
        • Other tests
        • Screening for complications
        • Diagnosis reference
      • Treatment
        • Treatment references
      • Key Points
      • More Information
    • Hepatitis C, Acute
      • Transmission of hepatitis C
      • General reference
      • Symptoms and Signs
      • Diagnosis
        • Other tests
      • Treatment
        • Treatment reference
      • Prevention
        • Prevention reference
      • Key Points
      • More Information
    • Hepatitis C, Chronic
      • General references
      • Symptoms and Signs
      • Screening
        • Screening reference
      • Diagnosis
        • Other tests
        • Screening for complications
      • Treatment
        • Overview of HCV treatment
        • Treatment references
      • Prognosis
        • Prognosis references
      • Key Points
      • More Information
    • Hepatitis D
      • Symptoms and Signs
      • Diagnosis
      • Treatment
      • Prevention
      • Key Points
    • Hepatitis E
      • Reference
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
      • Prevention
      • Key Points
    • Causes of Hepatitis
      • Common Causes
      • Less Common Causes
        • General reference
    • Overview of Acute Viral Hepatitis
      • Etiology
      • Symptoms and Signs
      • Diagnosis
        • Initial diagnosis of acute hepatitis
        • Serology
        • Biopsy
      • Treatment
        • Treatment reference
      • Prevention
        • General measures
        • Immunoprophylaxis
      • Key Points
    • Overview of Chronic Hepatitis
      • Etiology
        • Common causes
        • Less common causes
        • Etiology references
      • Classification
      • Symptoms and Signs
      • Diagnosis
        • Liver tests
        • Other laboratory tests
        • Biopsy
        • Screening for complications
        • Diagnosis references
      • Treatment
        • General treatment
        • Chronic hepatitis B and C
        • Metabolic dysfunction-associated steatohepatitis (MASH)
        • Autoimmune hepatitis
        • Hereditary hemochromatosis
      • Prognosis
      • Key Points
      • More Information
    Liver Masses and Granulomas
    • Hepatic Cysts
      • Reference
    • Benign Liver Tumors
      • Hepatocellular Adenoma
        • References for hepatocellular adenoma
      • Focal Nodular Hyperplasia
        • Focal nodular hyperplasia reference
      • Hemangiomas
        • References for hemangiomas
      • Other Benign Tumors
    • Hepatic Granulomas
      • Etiology
        • Etiology references
      • Pathophysiology
      • Symptoms and Signs
      • Diagnosis
      • Treatment
      • Prognosis
      • Key Points
    Vascular Disorders of the Liver
    • Hepatic Artery Aneurysms
      • Reference
    • Ischemic Cholangiopathy
      • Etiology
      • Symptoms and Signs
      • Diagnosis
      • Treatment
    • Sinusoidal Obstruction Syndrome
      • Etiology
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment references
    • Overview of Vascular Disorders of the Liver
      • Reference
    • Ischemic Hepatitis
      • Etiology
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
    • Congestive Hepatopathy
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis references
      • Treatment
    • Hepatic Artery Occlusion
      • Symptoms and Signs
      • Diagnosis
      • Treatment
    • Budd-Chiari Syndrome
      • Etiology
        • Etiology reference
      • Symptoms and Signs
      • Diagnosis
      • Treatment
        • Treatment reference
      • Prognosis
      • Key Points
    • Portal Vein Thrombosis
      • Etiology
        • Etiology reference
      • Symptoms and Signs
      • Diagnosis
        • Diagnosis reference
      • Treatment
        • Treatment references
      • Key Points
    • Peliosis Hepatis
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