Monday, April 19, 2010

Case of the Week 114

The following brain touch-preparations were stained with giemsa and viewed with a oil immersion objective. Diagnosis? (CLICK ON IMAGES TO ENLARGE)

50x oil

100x oil

50x oil

100x oil


Scott said...


Jeff and Jacque in MN said...

Naegleria fowleri?

Anonymous said...

I think it is Toxoplasma gondii, the tachyzoites. Naegleria would be much larger. BW in VT

Alasdair Hill said...

Toxoplasma gondii - trachy cyst.

Anonymous said...

I'm gonna go with Toxoplasma gondii. Criteria: rupturing cyst with what appear to be escaping tachyzoites. Morphology is crescent shape with a large nucleus and they appear to fit in the 4-8um by 2-3um size given in diagnostic literature.

pathwise said...

Dr. Ribes' pupil says toxo.