Case of the Week 594
This week's case was donated by Florida Fan - a lovely classic protozoan parasite seen in a concentrated wet prep of stool, and trichrome-stained specimen. Each line on the scale bar in the first 2 images represents 2.5 micrometers. What's the identification?
Read Dr. Pritt's blog, Parasite Wonders, and submit your answers, comments, and questions. Also, visit her website ParasiteWonders.com, which hosts an archive of classic images from cases Dr. Pritt posted going back to 2007 (in an easy-to-search "A through Z" format) and also offers a flashcard feature.




Answer to Case 594:
Entamoeba coli cysts and trophozoite.