Chapter 51: Liver- Hydatid Liver Cyst Flashcards

1
Q

What is it?

A

Usually a right lobe cyst filled with Echinococcus granulosus

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2
Q

What are the risk factors?

A
  1. Travel
  2. exposure to (carriers):
    • dogs
    • sheep
    • cattle
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3
Q

What are the signs/symptoms?

A

RUQ abdominal pain

jaundice

RUQ mass

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4
Q

How is the diagnosis made?

A
  1. Indirect hemagglutination antibody test (serologic testing)
  2. Casoni skin test
  3. ultrasound
  4. CT scan
  5. radiographic imaging
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5
Q

What are the findings on AXR?

A

Possible calcified outline of cyst

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6
Q

What are the major risks?

A

Erosion into the pleural cavity pericardial sac, or biliary tree

Rupture into the peritoneal cavity causing fatal anaphylaxis

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7
Q

What is the risk of surgical removal of echinococcal (hydatid)cysts?

A

Rupture or leakage of cyst contents into the abdomen may cause a fatal anaphylactic reaction

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8
Q

When should percutaneous drainage be performed?

A

Never; may cause leaking into the peritoneal cavity and anaphylaxis

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9
Q

What is the treatment?

A

Mebendazole, followed by surgical resection;

large cysts can be drained and then injected with toxic irrigant (scoliocide) into the cyst unless aspirate is bilious(which means there is a biliary connection) followed by cyst removal

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10
Q

Which toxic irrigations are used?

A

Hypertonic saline, ethanol, or cetrimide

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