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Case #380 - September 2014

A 25-year-old male was hospitalized for Crohn’s exacerbation, duodenal outlet obstruction, and regional enteritis. He indicated that he has not had recent travel abroad. The patient underwent a gastroenterostomy and duodenal biopsy specimens revealed acute and chronic inflammation with crypt abscesses, focal ulceration, and reactive epithelial changes. Granulomata, epithelial dysplasia, and fibrosis were lacking. The attending pathologist also noted suspect parasitic organisms and the slides were sent to the state health department, which in turn forwarded them to the CDC-DPDx for diagnostic assistance. Figures AF show what was observed on the slides received for testing. Figure A was taken at 100x magnification; Figures BD at 400x magnification; and Figures E and F at 1000x magnification with oil. 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

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 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