- Usually seen in elderly patients
- Can be multiple or solitary
- Arise as a result of biliary sepsis
- Mortality is high as diagnosis is often delayed
- Commonest organisms involved - E. coli, Klebsiella, Proteus and Bacteroides species

Picture provided by Dr Luis Pinheiro, Hospital S Teotonio, Viseu, Portugal
Aetiology
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Portal pylophlebitis - appendicitis, diverticulitis or pelvic infections
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Biliary disease - cholecystitis, ascending cholangitis or pancreatitis
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Trauma - blunt or penetrating
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Direct extension - empyema of the gall bladder, subphrenic or perinephric abscess
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Septicaemia
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Infected liver cysts or tumours
Clinical features
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Patients are generally systemically unwell
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Severe abdominal pain usually localised to right hypochondrium
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Swinging pyrexia, rigors and weight loss
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25% present with jaundice
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Examination shows an hypochondrial or epigastric mass
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30% have a pleural effusion
Investigation
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Serology shows a raised WCC, increased ESR and deranged LFTs
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Chest x-ray often shows a raised right hemidiaphragm and pleural effusion
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Ultrasound will localised the abscess and will guide drainage
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CT useful if diagnosis in doubt or if there are multiple abscess
Management
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Patients should be started on appropriate antibiotics (cephalosporin and metronidazole)
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Percutaneous drainage under ultrasound guidance is the initial treatment of choice
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If biliary obstruction will need to consider decompression
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Surgery may be required if
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Both situations are associated with a high mortality (>30%)
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Laparoscopic drainage may succeed after failure of percutaneous route
Bibliography
Rintoul R, O'Riordan M G, Laurenson
I F, Crosbie J L, Allan
P L, Garden O J. The
changing management of pyogenic liver abscess. Br J Surg
1996; 83: 1215-1218.
Tay
K H, Ravintharan T, Hoe
M N et al. Laparoscopic drainage of liver abscesses.
Br J Surg 1998; 85:
330-332. |