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PubMedDate not supplied

[The differential diagnosis of intestinal amebiasis].

Differential diagnosis of intestinal amebiasis (106 patients), acute Flexner's dysentery (105 patients) and nonspecific ulcerative colitis (31 patients) based on the clinical data and rectoromanoscopic findings is described. Rapidly and gradually progressing in the first 7 days intestinal amebiasis is characterized by a gradual onset, normal t0 with mounting general weakness, celiectasia, diarrhea with hyaloid mucus, focal catarrh-hemorrhagic changes and appearance of individual oval transversal ulcers on the colon mucosa.

Acute Disease↗
PubMed1981

[Diagnosis of intestinal amebiasis].

Three cases of intestinal amebiasis with varying clinical pictures are presented. One patient developed an amebic liver abscess and also amebic colitis, which was mistaken for Crohn's disease. A second patient with amebic dysentery had no Entamoeba histolytica trophozoites in fecal material because of previous therapy with an antiprotozoal drug. The third patient, who had colitis and severe constitutional symptoms, had trophozoites in the stool but negative serological tests. The diagnostic value of radiology and endoscopy, of examinations of stool and exsudate, and of histopathology and serology is discussed.

Acetanilides↗
PubMed1994

Intestinal amebiasis: histopathologic features in experimentally infected mice.

Intestinal amebiasis is still an important health problem in developing regions of the world. In order to advance our knowledge on the pathogenesis and to test the relevance of recently obtained in vitro observations, suitable in vivo experimental models of intestinal amebiasis are needed. In the past a variety of laboratory animals have been used, but the mouse, whose genetics and immunology is well known, has been seldomly used. Therefore, Entamoeba histolytica strain HM1:IMSS was directly inoculated into the cecum of C3H/HeJ mice, which were sacrificed at 5, 10, 15, 20, 25 and 30 days for histopathologic analysis. An ulcerative inflammatory disease highly reminiscent of human amebiasis was observed. Early 5 day lesions consisted of tiny erosions of the surface epithelium which evolved to deeper and more extensive destructive lesions of the cecal wall. Indeed, flask-shaped ulcers, intestinal perforations and intramural abscess formation were observed at later times. It was noticeable that, despite the lack of obvious significant tissue invasion by amebae, ulcerative disease was extensive and found virtually in all mice. These observations support the view that tissue invasion by trophozoites is not necessarily required for ulcerative disease to occur, suggesting a role for toxic factors released by amebae.

Animals↗
PubMedDate not supplied

[Diagnostic certainty in intestinal amebiasis in Managua].

Three surveys were carried out in Managua. Nicaragua. In the first one it was found that 71% of the intestinal amebiasis cases of obligatory notification had no comparable diagnostic foundations; in the second one, 11.7% of the laboratory diagnoses as Entamoeba histolytica referred by 4 health centers were correct; and in the third one, it was obvious that only 9.4% of the doctors knew well what intestinal amebiasis is. The results suggest that intestinal amebiasis is being diagnosed excessively in Managua.

Animals↗