Case #285 – October, 2010

A 33-year-old woman, who had traveled to Togo and Benin for two weeks, developed fever, chills, and rigors within three days after returning to the U.S. She sought medical attention at a local hospital where she provided her travel history and explained that she did not take malaria prophylaxis due to lost baggage between countries during travel. Blood smears were ordered, stained with Giemsa, and examined at 1000x oil magnification. Figures AB show what was found on a thick smear; Figures CF show what was observed on a thin smear. What is your diagnosis? Based on what criteria?

Figure A

Figure B

Figure C

Figure D

Figure E

Figure F

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.

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