Wednesday, October 9, 2024

Case of the Week 757

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?




10 comments:

  1. It is a larva of Strongyloides stercoralis

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  2. Hookworm rhabditiform larva! Very cool!

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  3. Strongyloides stercoralis

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  4. Strongyloides stercoralis-pretty pictures!

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  5. 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…

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  6. 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?

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  7. 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).

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