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. Identification?
Whenever I lecture or teach on this subject, I always ask my students or the audience if they can count to 5. And if they can, then they should be capable of identifying this species!
That's all I will say until more answers roll in...
Every week I will post a new Case, along with the answer to the previous case. Please feel free to write in with your answers, comments, and questions. Also check out my image archive website at http://parasitewonders.com. Enjoy!
The Fine Print: Please note that all opinions expressed here are mine and not my employer. Information provided is for educational purposes only. It is not intended as and does not substitute for medical advice. I do not accept medical consults from patients.
9 comments:
Considering the number of nuclei in the second picture, Entamoeba coli?
Whenever I lecture or teach on this subject, I always ask my students or the audience if they can count to 5. And if they can, then they should be capable of identifying this species!
That's all I will say until more answers roll in...
CNN would say this is Escherichia coli. ;)
They already have! And I have screen captured it for posterity!
Entamoeba coli. Cyst has 8 nuclei.
Entamoeba coli
Cyst and trofozoite Entamoeba coli
Agree with cysts, trophozoite and precyst of Entamoeba coli.
Entamoeba coli cyst having about 8 nuclei
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