Case #388 - January 2015
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A 42-year-old man with a history of living abroad in Peru for a year returned home to the United States. He reported to his health care provider that he had been experiencing vague intermittent abdominal discomfort. A stool specimen was collected and processed for ova-and-parasite (O&P) examination. Figures A-E show what was observed at 400x magnification in moderate numbers; Figures A and B are of the same object in different focal planes. The object in Figure D is approximately 33 micrometers in diameter. What is your diagnosis? Based on what criteria?
Figure A
Figure B
Figure C
Figure D
Figure E
Images presented in the monthly case studies are from specimens submitted for diagnosis or archiving. On rare occasions, clinical histories given may be partly fictitious.
DPDx is an education resource designed for health professionals and laboratory scientists. For an overview including prevention and control visit www.cdc.gov/parasites/.
- Page last reviewed: August 24, 2016
- Page last updated: August 24, 2016
- Content source:
- Global Health – Division of Parasitic Diseases and Malaria
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