Liver abscesses and cysts Flashcards

1
Q

define a liver abscess or cyst?

A
  • Abscess: liver infection resulting in a walled off collection of pus
  • Cyst: liver infection resulting in a walled off collection of cyst fluid
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2
Q

causes and risk factors of pyogenic cysts?

A

o Staphylococcus aureus (Kids)
o Escherichia coli (Adults)
o 60% are caused by biliary tract disease

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3
Q

causes and risk factors of amoebic abscesses?

A

o Caused by Entamoeba histolytica
o Spread via faecal-oral route
o Often travel history to the far east

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4
Q

causes and risk factors of heated cysts?

A

o Caused by tapeworm Echinococcus granulosis

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5
Q

epidemiology of pyogenic, amoebic and hydatid cysts

A
  • pyogenic is common in the industrialised world
  • amoebic is most common worldwide
  • hydatid is most common in sheep rearing countries.
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6
Q

main presenting symptoms of liver abscesses and cysts?

A
  • Fever
  • Malaise
  • Anorexia
  • Weight loss
  • RUQ pain
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7
Q

signs of liver abscesses and cysts on physical examination?

A
•	Fever - continuous or spiking  
•	Jaundice  
•	Tender hepatomegaly 
•	Right lung base: 
o	Dullness to percussion  
o	Reduced breath sounds  
o	Due to reactive pleural effusion
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8
Q

what might the bloods show is a cyst is present?

A
o	FBC 
•	Mild anaemia  
•	Leukocytosis  
•	High eosinophils (if hydatid disease) 
o	LFTs 
•	High ALP 
•	High bilirubin
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9
Q

what might a liver USS show?

A

fluid filled cavity

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