Lung - nontumor

Author: Elliot Weisenberg, M.D. (see Authors page)

Revised: 24 February 2017, last major update September 2011

Copyright: (c) 2003-2017,, Inc.

PubMed search: cryptosporidium pulmonary

Cite this page: Cryptosporidium. website. Accessed November 15th, 2018.
Definition / general
  • 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
Microscopic (histologic) description
  • Characteristic spores on luminal epithelial cells
  • Mucosa with mild lymphocytic infiltrate
Cytology images

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Cryptosporidium in sputum