Difference between revisions of "Amebiasis"

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| Prognosis  = benign
| Prognosis  = benign
| Other      =
| Other      =
| ClinDDx    = [[colorectal carcinoma]], [[colitis]]
| ClinDDx    = [[colorectal carcinoma]], [[colitis]], [[granulation tissue]]
| Tx        =
| Tx        =
}}
}}

Revision as of 02:11, 9 April 2014

Amebiasis
Diagnosis in short

Amebiasis. H&E stain.

LM entamoeba histolytica: round/ovoid eosinophilic bodies ~ 40-60 micrometers in maximal dimension; found in bowel lumen, usu. ingest (whole) red blood cells
LM DDx fecal material, necroinflammatory debris
Site colon

Associated Dx +/-liver abscess
Signs diarrhea, blood per rectum
Prevalence uncommon
Endoscopy colitis, mass lesion, granulation tissue-like
Prognosis benign
Clin. DDx colorectal carcinoma, colitis, granulation tissue

Amebiasis, also be spelled amoebiasis, is an infectious disease, caused by the protozoan Entamoeba histolytica.

General

May cause:[3]

Gross

Features:[4]

Microscopic

Features:

  • Entamoeba histolytica are round/ovoid eosinophilic bodies ~ 40-60 micrometers in maximal dimension.
    • Found in bowel lumen.
    • Ingest RBCs.

Image

See also

References

  1. URL: http://www.health.state.ny.us/diseases/communicable/amebiasis/fact_sheet.htm. Accessed on: 17 June 2010.
  2. Fernandes, H.; D'Souza, CR.; Swethadri, GK.; Naik, CN.. "Ameboma of the colon with amebic liver abscess mimicking metastatic colon cancer.". Indian J Pathol Microbiol 52 (2): 228-30. PMID 19332922. http://www.ijpmonline.org/article.asp?issn=0377-4929;year=2009;volume=52;issue=2;spage=228;epage=230;aulast=Fernandes.
  3. Mortimer, L.; Chadee, K. (Mar 2010). "The immunopathogenesis of Entamoeba histolytica.". Exp Parasitol. doi:10.1016/j.exppara.2010.03.005. PMID 20303955.
  4. Stuiver, PC.; Visser, LG. (Nov 1993). "[Ameboma of the large intestine and rectum].". Ned Tijdschr Geneeskd 137 (45): 2328-31. PMID 8255341.
  5. Ooi, BS.; Seow-Choen, F. (Apr 2003). "Endoscopic view of rectal amebiasis mimicking a carcinoma.". Tech Coloproctol 7 (1): 51-3. doi:10.1007/s101510300008. PMID 12750955.