400x original magnification
1000x original magnification
Many thanks to Florida Fan for these beautiful images!
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A parasitologist's view of the world
Welcome to Parasite Case of the Week
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.
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.
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10 comments:
Blastocystis hominis
What's the calibration on the ocular micrometer -- what's the size of these objects?
I am not sure of the size, but if its 4-5 µm, i would say Cryptosporium oocysts
sorry for the misspelling, Cryptosporidium
Cyclospora...too big for Cryptosporidium...
Lee
The occular micrometer has been calibrated to measure:
1 graduation = 2.5 nm at 400x
1 graduation = 1.0 nm at 1000x
total magnification.
Florida fan
Cyclospora measure 8-10 um Cryptosporidium sp. 4-5 um
Hans
Shame on me! I've now added the size.
Cyclospora cayetanensis, uniform safranin staining.
Just Curious...does anyone have an ocular micrometer that deviates from 100x = 10nm, 400x = 2.5 and 1000x = 1 nm. I have calibrated many scopes in my career and have never seen one different. Just Curious. Lee
ecollings@shoremedicalcenter.org
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