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Pyogenic liver abscess
Definition
Pyogenic liver abscess is a pus-filled area in the liver.
Alternative Names
Liver abscess; Bacterial liver abscess
Causes, incidence, and risk factors
There are many potential causes of liver abscesses, including:
- Infection in the blood
- Infection of the bile draining tubes
- Recent endoscopy of the bile draining tubes
- Trauma that damages the liver
The most common bacteria that cause liver abscesses are:
- Bacteroides
- Enterococcus
- Escherichia coli
- Klebsiella
- Staphylococcus
- Streptococcus
In most cases, more than one type of bacteria is found.
Symptoms
- Clay-colored stool
- Dark urine
- Fever, chills
- Loss of appetite
- Nausea, vomiting
- Pain in right upper abdomen (more common) or throughout the abdomen (less common)
- Unintentional weight loss
- Weakness
- Yellow skin (jaundice)
Signs and tests
Tests may include:
- Abdominal CT scan
- Abdominal ultrasound
- Bilirubin blood test
- Blood culture for bacteria
- Complete blood count (CBC)
- Liver biopsy
- Liver function tests
- White blood cell count
Treatment
Treatment usually consists of surgery or going through the skin with a needle or tube to drain the abscess. You will also receive antibiotics for about 4 - 6 weeks. Sometimes antibiotics alone can cure the infection.
Support Groups
Expectations (prognosis)
This condition can be life threatening some patients. The risk for death is higher in people who have many liver abscesses.
Complications
Life-threatening sepsis can develop.
Calling your health care provider
Call your health care provider if you have:
- Any symptoms of this disorder
- Severe abdominal pain
- Persistent high fever
- Other new symptoms during or after treatment
Prevention
Prompt treatment of abdominal and other infections may reduce the risk of developing a liver abscess. Many cases are not preventable.
References
Neuschwander-Tetri BA. Bacterial, parasitic, fungal and granulomatous liver diseases. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 155.
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