Clinical Topics Conference: Chapter 14, Liver

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  1. Cirrhosis
  2. Viral Hepatitis
  3. Hereditary Hemochromatosis
  4. Primary Biliary Cirrhosis
  5. Hepatocellular Carcinoma

Clinical vignette 1

A 60-year old, markedly emaciated white male was brought in by his sister who found him in his apartment in a state of confusion, completely disoriented and markedly agitated. He had lived alone, was eating poorly and drinking large amounts of hard liquor.

Upon physical examination, he was emaciated, with a distended, protruding abdomen and a postive fluid wave. The skin and mucous membranes were yellow. Mentally, he was slow and drowsy, with prominent slurred speech. A tremor of the hands was evident. Palmar erythema, gynecomastia, and spider nevi were also noted. The liver and spleen were both palpable.

Laboratory examination

Serum chemistry values: (Normal values)
sodium (Na) 135 mEq/L (136 -146 mEq/L)
potassium (K) 2.9 mEq/L (3.5 - 5.1 mEq/L)
chloride (Cl) 97 mEq/L (98 - 106 mEq/L)
urea nitrogen 28 mg/dl (7 - 18 mg/dl)
AST 274 U/L (10 - 30 U/L)
ALT 117 U/L (5 - 30 U/L)
Alk. phosphatase 325 U/L (50 - 175 U/L)
GGT163 U/L (8 - 50 U/L)
LD 667 U/L (210 - 420 U/L)
bilirubin 5 mg/dL (0.2 - 1.0 mg/dL)
albumin 2.1 g/dL (3.5 - 5.0 g/dL)
total protein 5.8 g/dL (6.4 - 8.3 g/dL)

Shortly after admission the patient experienced massive hematemesis, which could not be controlled, and he died.

Discussion topics

  1. Describe the anticipated autopsy findings.

  2. How does alcohol affect the liver?

  3. Discuss the pathogenesis of ascities, palmar erythema and gynecomastia.

  4. Discuss the pattern and likely causes of increased enzyme activity in the serum of this patient. What other tests would have been useful in evaluating liver disease in this patient? How? (Be selective and frugal in your choice of tests.)

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    Clinical vignette 2

    The patient was a 27-year old physician, who worked as a PGY-1 medicine resident in a University Hospital. His chief complaint was fatigue; this was manifested by weakness, flu-like symptoms, and mild fever. He had noticed dark urine and yellow discoloration of his sclera.

    His past medical history was unremarkable. He did not remember having any contact with a jaundiced patient. He takes no medications. He has never received a blood transfusion.

    Upon physical examination, there was slight enlargement of the liver, and it was tender. He was jaundiced.

    Serum chemistry values: (normal values)
    Bilirubin 15 mg/dL 0.2-1.0 mg/dL
    Albumin 3.8 g/dL 3.5-5.0 g/dL
    AST 1100 U/L 10-30 U/L
    ALT 980 U/L 5-30 U/L
    Alk. phosphatase 200 U/L 50-175 U/L
    Hepatitis virus B Surface antigen positive

    Clinical course:
    The patient made a complete recovery, albeit over a period of 6 months.

    Discussion topics

    1. Discuss the significance of laboratory findings.

    2. Define and compare the clinical features of diseases caused by viral hepatitis A, B, C.

    3. Are there other forms of viral hepatitis besides hepatitis A, B or C?

    4. Chart the course of abnormal liver function tests and serologic tests in patients with hepatitis B.

    5. Describe how you would monitor a patient recovering from the acute phase of hepatitis B.

    6. What is the importance of hepatitis B e-antigen and the antibody which arises in response to it later in the course of the disease?

    7. What is the difference between IgM and IgG antibodies to viral antigens?

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    Clinical vignette 3

    This 50 year old man was admitted with the chief complaint of easy fatigability and swelling of legs. He noticed progressive pigmentation of his skin, and has an urge to urinate 5-8 times per day. He is always thirsty. Several of his uncles and his father died of cirrhosis.

    Physical findings: Shortness of breath. Tachycardia. Rales over the basal portions of both lungs. Ascities. Pitting edema of lower extremities. The liver is enlarged 2 finger breadth below costal margin and sensitive to palpation.

    Serum chemistry values: (normal values)
    Bilirubin 2.5mg/dL 0.2-1.0 mg/dL
    Albumin 3.1 g/dL 3.5-5.0 g/dL
    AST 70 U/L 10-30 U/L
    ALTIron 100 U/L360 mcg/dL5-30 U/L50-160mcg/dL
    Transferrin 8 g/L 2-4 g/L
    (Saturation)Glucose 80% 180 mg/dL 20-55% 70-115 mg/dL
    Prothrombin time 20 seconds 11-13.5 seconds

    Liver biopsy was performed. It showed signs of cirrhosis and massive deposits of hemosiderin in liver cells, Kupffer cells and bile duct epithelium.

    Discussion topics

    1. What is the difference between hemosiderosis and hereditary hemochromatosis?

    2. What is the basic defect in hereditary hemochromatosis?

    3. What is the treatment of HH?

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    Clinical vignette 4

    A 30 year old woman presents with jaundice and long-standing itch, mild upper abdominal quadrant pain, weight loss, anorexia. Xanthomas are present on the eyelids. She noticed that her stools were yellow.

    Serum chemistry values: (normal values)
    Albumin 3.0 3.5-5.0 g/dL
    Bilirubin 12 mg/dL0.2-1.0 mg/dL
    Alkaline phosphatase 480 U/L 50-175 U/L
    Cholesterol 520 mg/dL < 220 mg/dL (for her age)

    Antimitochondrial antibodies positive 1:520

    Discussion topics

    1. Discuss the expected histopathologic findings in the liver biopsy specimen.

    2. Discuss the pathogenesis of primary and secondary biliary cirrhosis.

    3. Which other autoimmune disorders occur in conjunction with primary biliary cirrhosis?

    4. Compare primary biliary cirrhosis with primary sclerosing cholangitis and lupoid hepatitis.

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    Clinical vignette 5

    66 year old man with past history of viral hepatitis 20 years ago. Since then he was more or less healthy until 2-3 months prior to admission.

    Serum chemistry values: (Normal values)
    Albumin 2.1 g/dL 3.5-5 g/dL
    AFP 4,000 mg/L <40 mg/L
    Prothrombin time 18 seconds 11-13.5 seconds

    Discussion topics

    1. Describe the anticipated histopathologic findings in the liver biopsy.

    2. What is the treatment of this disease? What is the prognosis?

    3. Contrast and compare hepatocellular carcinoma with other liver tumors.

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