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Case #422 - June 2016

A stool specimen was collected from a 10-year-old boy from Cambodia as part of a refugee screening program. The stool was collected in 10% formalin and sent to the local county health department for routine ova-and-parasite (O&P) examination. Figures A-F show what was observed at 200x magnification on a wet mount; Figures E and F were stained with iodine.  The size of the objects ranged from 80-120 micrometers in length.  What is your diagnosis?  Based on what criteria?

Figure A

Figure A

Figure B

Figure B

Figure C

Figure C

Figure D

Figure D

Figure E

Figure E

Figure F

Figure F

DPDx is an educational resource designed for health professionals and laboratory scientists. For an overview including prevention, control, and treatment visit www.cdc.gov/parasites/.

Page last reviewed: August 24, 2016