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?

20 comments:

Marc Couturier said...

Beautiful pics Idzi! One of my favourites!

Hamdi said...

Cytospora belli?

Shelly of Oshkosh said...

is that a coccidia? size?

ParasiteGal said...

check out the scale bar :)

Idzi P. said...

Thanks Marc ;-)

Kamran Kadkhoda said...

Would look nice under UV light

Anonymous said...

ISOSPORA OR CYSIOPORIASIS

Old One said...

The unsporulated oocyst of Isospora belli.

Anonymous said...

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

Karine said...

Cystoisospora belli imature oocyst

Pamela DurĂ¡n said...

Ooquiste no esporulado de Isospora belli

Sir Galahad said...

Unsporulated oocyst of Cistoisospora belli.

Sir Galahad said...

Pardon, Cystoisospora belli

Unknown said...

cryptosporidia ??

Crespo’o said...

cryptosporidia??

William Sears said...

sarcocystis?

Sam said...

Cystoisospora belli oocysts

Rachana Nair said...

Cystoisospora belli

Ali said...

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

Anonymous said...


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.