Small bowel (small intestine)
Infectious disorders
Cryptosporidium parvum

Author: Hanni Gulwani, M.D. (see Authors page)

Revised: 14 February 2018, last major update August 2012

Copyright: (c) 2003-2018,, Inc.

PubMed Search: Cryptosporidium parvum[TI] small bowel

Cite this page: Gulwani, H. Cryptosporidium parvum. website. Accessed March 19th, 2018.
Definition / general
  • Acid fast protozoa which causes self limited disease in immunocompetent but severe watery diarrhea resistant to most therapy in immunocompromised (J Biomed Res 2012;25:1)
  • Acid fast infective oocyst in stool
Microscopic (histologic) description
  • 2 - 5 micron basophilic spherical structures attached to microvillus surface of epithelium
  • Variable villus abnormality, may have eosinophils infiltrating mucosa
Microscopic (histologic) images

Images hosted on other servers:

Various images

Positive stains
Differential diagnosis