Tuesday, November 5, 2019

Case of the Week 567

This week's case is from Idzi Potters and the Institute of Tropical Medicine, Antwerp. The following object was seen in a concentrated stool specimen from a 3-year-old toddler with diarrhea (40x objective). It measures 45 micrometers in greatest dimension. Identification?

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9 comments:

  1. Pamela DuránNovember 5, 2019 at 10:05 AM

    Huevo de Hymenolepis nana

    ReplyDelete
  2. Sir GalahadNovember 5, 2019 at 10:28 AM

    Hymenolepis nana ( with polar filaments and
    dimensions.... )

    ReplyDelete
  3. M MatlaniNovember 5, 2019 at 10:28 AM

    H nana

    ReplyDelete
  4. Smail BelazzougNovember 5, 2019 at 11:23 AM

    Œuf d'Hymenolepis nana

    ReplyDelete
  5. SamNovember 5, 2019 at 1:50 PM

    Hymenolepis nana. Based on size and presence of hooklets in the oncosphere. I can just make out polar filaments in one part of the image too. The patient demographic (child) also fits with this diagnosis.

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  6. AnonymousNovember 5, 2019 at 6:03 PM

    Yes, I would agree with the previous answers. H. nana egg with polar filaments and booklets.
    Florida Fan

    ReplyDelete
  7. Blaine A. MathisonNovember 6, 2019 at 9:07 AM

    Paraphrasing one of my earliest:

    There once was a chap from Indiana
    who with his cereal enjoyed a banana
    but with the cereal he did eat
    he received an unexpected treat
    The cestode known as Hymenolepis nana!

    ReplyDelete
  8. Idzi P.November 8, 2019 at 12:21 PM

    Well done for all!
    Next time, I will try to make it a bit harder...
    ;-)

    ReplyDelete
  9. AnonymousNovember 10, 2019 at 3:19 PM

    To Idzi:
    Please do not give the snake worm. For Vietnamese, cobras are a delicacy when cooked. So far, I have not known a case of snake worm till you challenged us.
    Florida Fan

    ReplyDelete