Monday, December 7, 2020

Case of the Week 617

 Here is our monthly case from Idzi Potters and the Institute of Tropical Medicine, Antwerp. The following were seen in a stool specimens in a patient with diarrhea and recent travel to sub-Saharan Africa. 

Unstained wet mount: 


Combined iron hematoxylin-Kinyoun stain:


Identification?

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20 comments:

  1. Marc CouturierDecember 7, 2020 at 2:43 PM

    Beautiful pics Idzi! One of my favourites!

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  2. HamdiDecember 7, 2020 at 2:45 PM

    Cytospora belli?

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  3. Shelly of OshkoshDecember 7, 2020 at 3:07 PM

    is that a coccidia? size?

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  4. ParasiteGalDecember 7, 2020 at 3:12 PM

    check out the scale bar :)

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  5. Idzi P.December 7, 2020 at 3:25 PM

    Thanks Marc ;-)

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  6. Kamran KadkhodaDecember 7, 2020 at 4:06 PM

    Would look nice under UV light

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  7. AnonymousDecember 7, 2020 at 4:25 PM

    ISOSPORA OR CYSIOPORIASIS

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  8. AnonymousDecember 7, 2020 at 4:38 PM

    The unsporulated oocyst of Isospora belli.

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  9. AnonymousDecember 7, 2020 at 4:42 PM

    Beautiful Cystoisospora belli! Idzi, as Kamran stated they autofluoresce under UV microscopy too.
    We routinely use this characteristic to confirm our light microscopy findings as it is quick and convenient.
    Florida Fan

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  10. KarineDecember 7, 2020 at 5:14 PM

    Cystoisospora belli imature oocyst

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  11. Pamela DuránDecember 7, 2020 at 5:24 PM

    Ooquiste no esporulado de Isospora belli

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  12. Sir GalahadDecember 8, 2020 at 4:04 AM

    Unsporulated oocyst of Cistoisospora belli.

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  13. Sir GalahadDecember 8, 2020 at 4:05 AM

    Pardon, Cystoisospora belli

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  14. CrespooDecember 8, 2020 at 6:27 AM

    cryptosporidia ??

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  15. Crespo’oDecember 8, 2020 at 6:28 AM

    cryptosporidia??

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  16. William SearsDecember 8, 2020 at 7:34 AM

    sarcocystis?

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  17. SamDecember 8, 2020 at 7:52 AM

    Cystoisospora belli oocysts

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  18. Rachana NairDecember 8, 2020 at 8:08 PM

    Cystoisospora belli

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  19. AliDecember 9, 2020 at 1:28 PM

    A beautifully stained unsporulated Cystoisospora belli oocyst. It would have been nice to see it with modified acid-fast stain.

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  20. AnonymousDecember 12, 2020 at 9:35 AM


    Beautiful pictures of Cystoispora belli, an old favorite of mine :)
    Bialek R, Binder N, Dietz K, Knobloch J, Zelck UE. Comparison of autofluorescence and iodine staining for detection of Isospora belli in feces. Am J Trop Med Hyg. 2002 Sep;67(3):304-5. doi: 10.4269/ajtmh.2002.67.304. PMID: 12408672.

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