Document Detail

Invasive amebiasis and ameboma formation presenting as a rectal mass: An uncommon case of malignant masquerade at a western medical center.
MedLine Citation:
PMID:  17948943     Owner:  NLM     Status:  MEDLINE    
A 54-year-old man presented with rectal pain and bleeding secondary to ulcerated, necrotic rectal and cecal masses that resembled colorectal carcinoma upon colonoscopy. These masses were later determined to be benign amebomas caused by invasive Entamoeba histolytica, which regressed completely with medical therapy. In Western countries, the occurrence of invasive protozoan infection with formation of amebomas is very rare and can mistakenly masquerade as a neoplasm. Not surprisingly, there have been very few cases reported of this clinical entity within the United States. Moreover, we report a patient that had an extremely rare occurrence of two synchronous lesions, one involving the rectum and the other situated in the cecum. We review the current literature on the pathogenesis of invasive E. histolytica infection and ameboma formation, as well as management of this rare disease entity at a western medical center.
Rosemarie-E Hardin; George-S Ferzli; Michael-E Zenilman; Pratap-K Gadangi; Wilbur-B Bowne
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  World journal of gastroenterology : WJG     Volume:  13     ISSN:  1007-9327     ISO Abbreviation:  World J. Gastroenterol.     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2007-10-22     Completed Date:  2007-11-29     Revised Date:  2014-09-26    
Medline Journal Info:
Nlm Unique ID:  100883448     Medline TA:  World J Gastroenterol     Country:  China    
Other Details:
Languages:  eng     Pagination:  5659-61     Citation Subset:  IM    
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MeSH Terms
Colorectal Neoplasms / diagnosis
Diagnosis, Differential
Entamoeba histolytica*
Entamoebiasis / diagnosis*,  pathology,  therapy
Middle Aged
Rectal Diseases / diagnosis*

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