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

Revised: 2 December 2016, last major update August 2012

Copyright: (c) 2003-2016,, Inc.

PubMed Search: toxoplasmosis
Cite this page: Toxoplasmosis. website. Accessed November 18th, 2018.
Definition / general
  • Common opportunistic pathogen in patients with AIDS
  • Rarely presents in stomach

  • Toxoplasma gondii:
    • Obligate intracellular coccidian protozoan that infects humans, other mammals, birds
    • Sexual reproduction occurs in cats
    • Oocytes are passed in cat feces, ingested from contaminated soil, excyst in duodenum, release sporozoites that invade intestine
    • Infection also by ingesting viable tissue cysts in undercooked meat
Case reports
Microscopic (histologic) description
  • Variable acute and chronic inflammatory infiltrates, usually in antrum or fundus
  • Trophozoites present
Microscopic (histologic) images

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