The following objects were seen in a fresh stool specimen collected at a field station in Uganda. The objects are approximately 280 µm long and no longer motile upon examination. What is your identification?
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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:
It is a larva of Strongyloides stercoralis
Hookworm rhabditiform larva! Very cool!
Strongyloides stercoralis
Strongyloides stercoralis-pretty pictures!
Syphacia sp.
My general feeling is that this is a free-living rhabditoid imposter, but I wish the esophagus was better shown before committing to that absolutely. The stringy tail and “non-motile” observation (spurious passage?) point me that way too…
These larvae do not resemble those of human infections. Following previous comments, I wonder whether Dr. Pritt introduce to us some exotic larvae, possibly of murine origin?
Hookworm rhabditiform larva. The larva doesn't seem to have the bulbous oesophagus you would expect from Strongyloides. It's likely hatched from eggs in a faeces specimen that has been left at room temperature (i.e. delay in processing).
Pinworm
Strongy larvae
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