Diagnostic Findings [Last Modified: ]
Toxoplasmosis
[Toxoplasma gondii]
Causal Agent Life Cycle Geographic Distribution Clinical Features Laboratory Diagnosis Treatment

Microscopy Findings

Toxoplasma gondii tachyzoites, Giemsa stain
A

A: Toxoplasma gondii tachyzoites, stained with Giemsa, from a smear of peritoneal fluid obtained from a mouse inoculated with T. gondii.  Tachyzoites are typically crescent shaped with a prominent, centrally placed nucleus.

Toxoplasma gondii cyst, hematoxylin and eosin stain Toxoplasma gondii cyst, hematoxylin and eosin stain
B C

B: Toxoplasma gondii in brain tissue stained with hematoxylin and eosin (100×).
C: Zoom of Image B, T. gondii cyst.
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