Amoebic liver abscess overview: Difference between revisions
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Yamuna Kondapally, M.B.B.S[2]
Synonyms and keywords: Hepatic amoebiasis; Extraintestinal amoebiasis; Abscess-amoebic liver
Overview
Amoebic liver abscess is caused by a protozoan Entamoeba histolytica. Is it an inflammatory space occupying lesion in liver.
Historical Perspective
Amoebiasis was first described as a deadly disease by Hippocrates. [1]. The first case of amoebiasis was documented in 1875.
Classification
Liver abscess may be classified into 3 types based on etiology into pyogenic, amoebic, and fungal liver abscess.[2]. Based on duration of symptoms, amoebic liver abscess is classified into acute and chronic.
Pathophysiology
Ameoebic liver abscess is caused by a protozoan Entamoeba histolytica. It is the most common extraintestinal manifestation of amoebiasis. The mode of transmission of Entamoeba histolytica include fecal-oral route (ingestion of food and water contaminated with feces containing cysts), sexual transmission via oral-rectal route in homosexuals, vector transmission via flies, cockroaches, and rodents.[3][4] Hepatocyte programmed cell death induced by Entamoeba histolytica causes amoebic liver abscess. The infection is transmitted to liver by portal venous system.[5]
Causes
Amoebic liver abscess is caused by a protozoan Entamoeba histolytica.
Differential diagnosis
Epidemiology And Demographics
References
- ↑ Tanyuksel M, Petri WA (2003). "Laboratory diagnosis of amebiasis". Clin Microbiol Rev. 16 (4): 713–29. PMC 207118. PMID 14557296.
- ↑ Mavilia MG, Molina M, Wu GY (2016). "The Evolving Nature of Hepatic Abscess: A Review". J Clin Transl Hepatol. 4 (2): 158–68. doi:10.14218/JCTH.2016.00004. PMC 4913073. PMID 27350946.
- ↑ Fletcher SM, Stark D, Harkness J, Ellis J (2012). "Enteric protozoa in the developed world: a public health perspective". Clin Microbiol Rev. 25 (3): 420–49. doi:10.1128/CMR.05038-11. PMC 3416492. PMID 22763633.
- ↑ Stanley SL (2003). "Amoebiasis". Lancet. 361 (9362): 1025–34. doi:10.1016/S0140-6736(03)12830-9. PMID 12660071.
- ↑ Aikat BK, Bhusnurmath SR, Pal AK, Chhuttani PN, Datta DV (1979). "The pathology and pathogenesis of fatal hepatic amoebiasis--A study based on 79 autopsy cases". Trans. R. Soc. Trop. Med. Hyg. 73 (2): 188–92. PMID 473308.