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Entamoeba histolytica is an anaerobic parasitic amoebozoan, part of the genus Entamoeba. [1] Predominantly infecting humans and other primates causing amoebiasis , E. histolytica is estimated to infect about 35-50 million people worldwide. [ 1 ]
Amoebic brain abscess is an affliction caused by the anaerobic parasitic protist Entamoeba histolytica.It is extremely rare; the first case being reported in 1849. [2] Brain abscesses resulting from Entamoeba histolytica are difficult to diagnose and very few case reports suggest complete recovery even after the administration of appropriate treatment regimen.
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.
E. histolytica infections occur in both the intestine and (in people with symptoms) in tissue of the intestine and/or liver. [14] Those with symptoms require treatment with two medications, an amoebicidal tissue-active agent and a luminal cysticidal agent. [9] Individuals that are asymptomatic only need a luminal cysticidal agent. [7]
[1] [10] Other symptoms may include fever, abdominal pain, and a feeling of incomplete defecation. [2] [6] [11] Complications may include dehydration. [3] The cause of dysentery is usually the bacteria from genus Shigella, in which case it is known as shigellosis, or the amoeba Entamoeba histolytica; then it is called amoebiasis. [1]
It can be caused by Acanthamoeba [2] [3] or Entamoeba histolytica. [4]: 421 [5] When associated with Acanthamoeba, it is also known as "cutaneous acanthamoebiasis". [6] Balamuthia mandrillaris can also cause cutaneous amoebiasis, but can prove fatal if the amoeba enters the bloodstream [7] [8] It is characterized by ulcers. Diagnosis of ...
Entamoeba moshkovskii is transmitted by contact or ingestion of any unclean water sources. It is known to be found in areas with polluted water such as brackish coastal pools, river line sediments, and originally sewage. [1] A study from eastern India recorded a moderately high prevalence of Entamoeba moshkovskii infection in pigs. [6]
Amoebic liver abscess due to Entamoeba histolytica accounts for 10% of cases. The incidence is much higher in developing countries. Fungal abscess, most often due to Candida species, accounts for less than 10% of cases. Iatrogenic abscess, caused by medical interventions