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?

9 comments:

Pamela Durán said...

Huevo de Hymenolepis nana

Sir Galahad said...

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

M Matlani said...

H nana

Unknown said...

Œuf d'Hymenolepis nana

Sam said...

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.

Anonymous said...

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

Blaine A. Mathison said...

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!

Idzi P. said...

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

Anonymous said...

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