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Liver abscess: Difference between revisions
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(Created page with "Liver abscesses in Western countries are caused by bacteria, so-called pyogenic liver abscess. In developing countries, liver abscesses are mostly caused by parasites. Liver abscesses mostly affect the right lobe of the liver. == Etiology == In many cases, the source cannot be identified (cryptogenic abscess). In cases where the source is identified, the following sources are the most common: * Ascending cholangitis (due to biliary obstruction) * Bacteraemia * Intraabd...") |
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Liver abscesses in Western countries are caused by bacteria, so-called pyogenic liver abscess. In developing countries, liver abscesses are mostly caused by parasites. Liver abscesses mostly affect the right lobe of the liver. | '''Liver abscesses''' in Western countries are caused by bacteria, so-called '''pyogenic liver abscess'''. In developing countries, liver abscesses are mostly caused by parasites. Liver abscesses mostly affect the right lobe of the liver. | ||
== Etiology == | == Etiology == | ||
In many cases, the source cannot be identified (cryptogenic abscess). In cases where the source is identified, the following sources are the most common: | In many cases, the source cannot be identified (cryptogenic abscess). In cases where the source is identified, the following sources are the most common: | ||
* Ascending cholangitis (due to biliary obstruction) | * Ascending [[cholangitis]] (due to biliary obstruction) | ||
* Bacteraemia | * [[Bacteraemia]] | ||
* Intraabdominal infection (appendicitis, diverticulitis) | * Intraabdominal infection ([[Acute appendicitis|appendicitis]], [[Diverticular disease (diverticulosis and diverticulitis)|diverticulitis]]) | ||
== Clinical features == | == Clinical features == | ||
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== Diagnosis and evaluation == | == Diagnosis and evaluation == | ||
Elevated inflammatory markers, abnormal liver function test, and positive blood culture is often present. | Elevated [[Inflammatory marker|inflammatory markers]], abnormal [[liver function test]], and positive [[blood culture]] is often present. | ||
Imaging shows hypoechoic/hypodense lesions, usually in the right lobe of the liver. An underlying source should also be sought on imaging. | Imaging shows hypoechoic/hypodense lesions, usually in the right lobe of the liver. An underlying source should also be sought on imaging. | ||