Sunday, September 21, 2014

Case of the Week 319

This week's case is also generously donated by Florida Fan, who has just had a run of really great cases!  The specimen is a particularly striking trichrome-stained stool specimen from a 20 year-old male from Florida (1000x):


Identification?

8 comments:

Anonymous said...

Giardia

Anonymous said...

Giardia

Eustacia Lee said...

Agree. Giardia

Anonymous said...

Giardia trophozoites

Anonymous said...

Giardia lamblia/duodenalis/intestinalis trophozoites.

Wan Hafiz

Anonymous said...

Nice Giardia on Trichrome stain! Lee

Arthur Morris said...

looks like everyone has this nailed with Giardia trophs. Fabulous ghostly appearance with the trichrome stain!

Tomáš Macháček said...

Giardia trophozoites. But how often are they found in the stool if compared with cysts? I thought that trophozoites are more likely to be detect in duodenal aspirates.