SrasV1, Main, Exploration, bibRecord, 006539

Intracellular Protozoan Infection in Small Intestinal Biopsies of Patients with AIDS

Identifieur interne : 006539 ( Main/Exploration ); précédent : 006538; suivant : 006540

Intracellular Protozoan Infection in Small Intestinal Biopsies of Patients with AIDS

Auteurs : R. Boldorini ; A. Tosoni ; G. Mazzucco [Italie] ; M. Cernuschi ; P. Caramello [Italie] ; E. Maran [Italie] ; G. Costanzi ; G. Monga

Source :

Pathology - Research and Practice [ 0344-0338 ] ; 1996.

RBID : ISTEX:A43F3EC1F8AB833D10FC4601DC7ACF897CE162BE

Descripteurs français

Wicri :
- topic : Sida.

English descriptors

Abstract

Summary: Small intestinal biopsies of 21 patients with acquired immunodeficiency syndrome (AIDS) with light microscopic findings diagnostic or suspicious for parasite infection were investigated by transmission electron microscopy (TEM).TEM allowed us to identify and specify the genus and species of involved parasites in 16 out of the 21 cases: 7 Cryptosporidium parvum, 5 Enterocytozoon bieneusi and 4 Isospora belli. Cryptosporidium was easily identified on light microscopy (LM), and only slightly influenced by parasite burden in all the 7 cases; TEM confirmed LM diagnosis and made it possible to characterize the parasites as C. parvum.The identification of Microsporidium on LM in our cases was related to the burden of parasite; its presence was certainty identified in 2 cases and suspected in 3. TEM allowed to identify these parasites as E. bieneusi.Intracytoplasmic coccidia could be detected with certainty in semithin sections in all 4 cases, but TEM was always needed to specify the infectious agent as I. belli. In 5 cases the suspicious of protozoan infection on LM (3 microsporidia, 1 intracytoplasmic coccidia and 1 Cryptosporidium) was not confirmed by TEM.Our data suggest that TEM is an appropriate diagnostic tool in this field of pathology and necessary in most of the cases.

Url:

https://api.istex.fr/ark:/67375/6H6-B25HGNGM-2/fulltext.pdf

DOI: 10.1016/S0344-0338(96)80228-7

Affiliations:

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Le document en format XML

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<term>Diagnostic electron microscopy</term>
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<keywords scheme="Teeft" xml:lang="en"><term>Aids patients</term>
<term>Albicans esophagitis</term>
<term>Asexual</term>
<term>Asexual forms</term>
<term>Belli</term>
<term>Bieneusi</term>
<term>Biopsy</term>
<term>Boldorini</term>
<term>Case number</term>
<term>Chronic diarrhea</term>
<term>Clin</term>
<term>Coccidia</term>
<term>Cryptosporidium</term>
<term>Electron microscopy</term>
<term>Enterocytes</term>
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<term>Enterocytozoon bieneusi</term>
<term>Esophagitis</term>
<term>Gondii encephalitis</term>
<term>Human immunodeficiency virus infection</term>
<term>Immunodeficiency</term>
<term>Immunodeficiency syndrome</term>
<term>Intestinal</term>
<term>Intestinal protozoa infections</term>
<term>Intracellular</term>
<term>Intracytoplasmic</term>
<term>Intracytoplasmic coccidia</term>
<term>Isospora</term>
<term>Isospora belli</term>
<term>Ivdu</term>
<term>Kotler</term>
<term>Lamina</term>
<term>Lamina propria</term>
<term>Life cycle</term>
<term>Light microscopy</term>
<term>Macrogametocytes meronts</term>
<term>Meronts</term>
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<term>Microsporidiosis</term>
<term>Microsporidium</term>
<term>Orenstein</term>
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<term>Polar tube</term>
<term>Proliferative stages</term>
<term>Semi</term>
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<term>Trophozoite</term>
<term>Ultrastructural</term>
<term>Vacuole</term>
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<front><div type="abstract" xml:lang="en">Summary: Small intestinal biopsies of 21 patients with acquired immunodeficiency syndrome (AIDS) with light microscopic findings diagnostic or suspicious for parasite infection were investigated by transmission electron microscopy (TEM).TEM allowed us to identify and specify the genus and species of involved parasites in 16 out of the 21 cases: 7 Cryptosporidium parvum, 5 Enterocytozoon bieneusi and 4 Isospora belli. Cryptosporidium was easily identified on light microscopy (LM), and only slightly influenced by parasite burden in all the 7 cases; TEM confirmed LM diagnosis and made it possible to characterize the parasites as C. parvum.The identification of Microsporidium on LM in our cases was related to the burden of parasite; its presence was certainty identified in 2 cases and suspected in 3. TEM allowed to identify these parasites as E. bieneusi.Intracytoplasmic coccidia could be detected with certainty in semithin sections in all 4 cases, but TEM was always needed to specify the infectious agent as I. belli. In 5 cases the suspicious of protozoan infection on LM (3 microsporidia, 1 intracytoplasmic coccidia and 1 Cryptosporidium) was not confirmed by TEM.Our data suggest that TEM is an appropriate diagnostic tool in this field of pathology and necessary in most of the cases.</div>
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Intracellular Protozoan Infection in Small Intestinal Biopsies of Patients with AIDS

Intracellular Protozoan Infection in Small Intestinal Biopsies of Patients with AIDS

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri