Case of the Week 536

March 17, 2019
I have a fun case for you this week, donated by Dr. Richard Davis, Blaine A. Mathison, and Dr. Marc R. Couturier from ARUP Laboratories and the University of Utah School of Medicine.

The following objects were found in stool of a toddler living in the Oceania region. There were motile and described as "rice like".
Manipulation of the object and microscopic examination of the expressed material revealed the following structures measuring approximately 200 µm in diameter with a dark center. Within the dark area were numerous smaller objects measuring 25-35 µm in diameter:


Identification?

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