Entamoeba histolytica
Amebiasis - Entamoeba Histolytica Symptoms, Pathophysiology,...
Amebiasis is a parasitic infection caused by entamoeba histolytica. Entamoeba histolytica infection is common worldwide and it can affect anyone, although it is more common in people who live in tropical...
Endoscopic Image of Amebiasis Colitis
Infection of the large intestine by Entamoeba histolytica may result in an illness of variable severity, ranging from mild, chronic diarrhea to fulminant dysentery. Infection also may be asymptomatic....
Rectal Amebiasis (1 of 2)
A 45 year-old female, with rectal bleeding with dark red color, two ulcers are observed “flask shaped” ulcer.
Amebic Colitis
Depending on the affected organ, the clinical manifestations of amebiasis are intestinal or extraintestinal. There are four clinical forms of invasive intestinal amebiasis, all of which are generally...
Large Ulcerative Lesion with Marginal Elevation
Ameboma. Shows a large ulcerative lesion with marginal elevation The formation of a mass lesion at sigmoid colon. It is essential that these could not be misdiagnossed as inflamatory bowel disease...
Flask Shaped Ulcer
The classic “flask shaped” ulcer in a patient with amebic colitis. See the next image and video clip to appreciate another lesion in the same person.
Amebic Colitis 3
Ulcers with slightly undermined edges are seen in this image of colonic amebiasis. The motile form of E. histolytica, the trophozoite, lives in the lumen of the large intestine, where it multiplies...
Amebic Colitis 2
The typical ulcers and redness are seen. Invasive amebiasis due to E. histolytica is more common in developing countries. In areas of endemic infection, a variety of conditions including ignorance,...
Invasive amebiasis and ameboma formation (4 of...
Histologic examination of the biopsies specimen confirmed the diagnosis of cecal ameboma. Biopsy specimens obtained from the ulcerative lesion in the revealed a number of amebic organisms, trophozoites....
Invasive amebiasis and ameboma formation (3 of...
Depicted thickening of the ascending colon wall and its ring-like stenosis. Because of concentric thickening of the wall and the mass-like appearance, a preliminary clinical diagnosis of cancer was...
Invasive amebiasis and ameboma formation (2 of...
Ameboma (amebic granuloma) is a localized thickening of the intestinal wall about an ulceration caused by Endamoeba histolytica which results in a lesion capable of being mistaken for a neoplasm because...
Invasive amebiasis and ameboma formation (1 of...
This 76 year-old female suffering of Alzheimer's disease underwent a colonoscopy due to brisk hematochezia.
Endoscopic View of Amebiasis Colitis (7 of 7)
Another view of the ascending colon. Multiple ulcers are appreciated.
Endoscopic View of Amebiasis Colitis (6 of 7)
Ascending colon; multiple ulcers are displayed here; these findings are consistent with Crohn´s disease.
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