Monday, August 11, 2014

Case of the Week 314

The following images are from a filtered urine specimen in a patient with dysuria.  No further history is available.  Identification?







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14 comments:

  1. UnknownAugust 11, 2014 at 3:51 PM

    Schistosomia hematobium

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  2. AnonymousAugust 11, 2014 at 3:51 PM

    Schistosoma haematobium? The characteristic ova shape and presence in the urine hint at S. haematobium.

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  3. AnonymousAugust 11, 2014 at 5:54 PM

    Urate crystals

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  4. AnonymousAugust 11, 2014 at 6:18 PM

    One of the characteristics of parasites is that their ova are fairly uniform in size. The objects pictured did not fit this criterium, furthermore, there is no internal organisation.
    The objects would be more compatible with uric acid crystals.

    Florida Fan

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  5. AnonymousAugust 11, 2014 at 10:18 PM

    Not a human parasite. I'm not sure if I would agree with uric acid crystal though.

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  6. AnonymousAugust 12, 2014 at 12:15 AM

    Uric asid crystals.
    Too transparent to be identify as Schistosoma haematobium. No sign of miracidium or organelles inside it.

    Wan Hafiz

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  7. Hans NausAugust 12, 2014 at 7:54 AM

    crystals

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  8. Giovan G.August 12, 2014 at 9:42 AM

    This comment has been removed by the author.

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  9. Giovan G.August 12, 2014 at 9:44 AM

    I agree... Crystals

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  10. AnonymousAugust 12, 2014 at 10:01 AM

    Crystals of some kind!

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  11. AnonymousAugust 12, 2014 at 11:11 AM

    Crystals, thinking Uric Acid...

    Lee

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  12. UnknownAugust 13, 2014 at 7:33 AM

    The standard differential would be S.haematobium or (much more unusual) Dioctophyme renale, however these bodies are not consistent with either and are variable in size and with no specific internal morphology. These appear to be uric acid crystals.

    Biochemists might be able to present a more thorough analysis of what the presence of a high number of uric acid crystals in fresh urine indicates, however that is out of my skill set!

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  13. AnonymousAugust 13, 2014 at 9:02 AM

    Yup size is not consistent, and highly variable and internal structures appear to be more crystalline.
    Not parasitic :)
    Shawn

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  14. AnonymousAugust 17, 2014 at 6:13 AM

    Crystals, not à human parasite

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