Intestinal microsporidiosis in a Chilean patient with acquired immunodeficiency syndrome (AIDS) - PubMed (original) (raw)

Case Reports

. 1993 Mar;189(2):209-13; discussion 213-6.

doi: 10.1016/S0344-0338(11)80094-4.

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Case Reports

Intestinal microsporidiosis in a Chilean patient with acquired immunodeficiency syndrome (AIDS)

D Oddó et al. Pathol Res Pract. 1993 Mar.

Abstract

A 24-year-old male patient with AIDS diagnosed in 1989, and with several episodes of pneumocystosis, was admitted because of a chronic diarrheic syndrome and severe epigastric pain. Endoscopy showed a granular duodenal mucosa. Light microscopy showed a moderate villous atrophy with round-cell inflammatory infiltration of the chorion. Giemsa, Ziehl-Neelsen, and Gram stains showed microsporidial spores measuring between 1.5 and 2 microns in the supranuclear cytoplasm of some enterocytes. Electron microscopy showed sporoblasts and spores consistent with Enterocytozoon bieneusi, with an apparently non-tubular, rather electron-dense polar filament showing up to 7 coils and also a microtubular internal structure with annular disposition, a finding which has not been adequately emphasized in the pertinent literature, probably representing a contractile property of the polar filament, rather than a mere duct for the parasitic sporoplasm to be inoculated.

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