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Reviewer: Elliot Weisenberg, M.D. (see Reviewers page)
Revised: 4 September 2011, last major update September 2011
Copyright: (c) 2003-2011, PathologyOutlines.com, Inc.


● Waterborne protozoal infection that mostly infects intestinal epithelium causing diarrhea or malabsorption
● Often causes self-limited illness in immunocompetent patients
● In HIV/AIDS, may spread to hepatobiliary tree or airways


● Highly active antiretroviral therapy / HAART, paromomycin and azithromycin may be useful (Int J STD AIDS 2005;16:515)

Micro description

● Characteristic spores on luminal epithelial cells
● Mucosa with mild lymphocytic infiltrate

Cytology images

Cryptosporidium in sputum

Virtual slides

Bronchial mucosal ulcer

End of Lung-nontumor > Infections > Cryptosporidium

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