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Medical condition From Wikipedia, the free encyclopedia
A amoebic liver abscess is a type of liver abscess caused by amebiasis.[1] It is the involvement of liver tissue by trophozoites of the organism Entamoeba histolytica and of its abscess due to necrosis.
| Amoebic hepatic abscess | |
|---|---|
 | |
| Gross pathology of liver containing amoebic abscess | |
| Specialty | Infectious diseases  |
Approximately 90% of patients with E histolytica are asymptomatic.[2] The two most common manifestations of E histolytica include colitis (bloody stool with mucus, abdominal pain, and/or diarrhea), and discovery of a liver abscess on imaging.[2] Liver abscesses commonly present as right upper quadrant abdominal pain and fever, with worsening features associated with abscess rupture.[2]
Diagnosis is primarily made by identifying stool ova and parasites on stool antigen testing in the presence of colitis, or E histolytica serology.[2]
Although medical management using long courses of antibiotics have proven to be successful, Drainage of the abscess is the mainstay treatment. [3]
Due to the difficulty of exploring host and amebic factors involved in the pathogenesis of amebic liver abscess in humans, most studies have been conducted with animal models (e.g., mice, gerbils, and hamsters). Histopathological findings revealed that the chronic phase of amebic liver abscess in humans corresponds to lytic or liquefactive necrosis, whereas in rodent models there is granulomatous inflammation. However, the use of animal models has provided important information on molecules and mechanisms of the host/parasite interaction in amebic liver abscess.[4]
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