Case #194 – December, 2006

Images from a trichrome stained fecal smear were submitted to DPDx telediagnosis assistance from a public health laboratory. Parasites were suspected and further confirmation was needed. The patient was a 32-year-old male who had diarrhea; no travel history was known. The objects in Figures A-D were present in moderately high numbers; images were taken at 1000× magnification. What is your diagnosis? Based on what criteria?

Figure A

Figure B

Figure C

Figure D

Images presented in the DPDx case studies are from specimens submitted for diagnosis or archiving. On rare occasions, clinical histories given may be partly fictitious.

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