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Case #339 - January, 2013

The CDC conducted a survey with the Ministry of Health in Uganda to evaluate the prevalence of filariasis among the local population. Skin snips and blood specimens were collected and sent to a regional laboratory for preparation. Thick blood films were made and stained with Giemsa, and then forwarded to the CDC in Atlanta for evaluation. The objects seen in Figures AD were seen in low numbers on several of the patients’ smears. The object in Figure A measured 325 micrometers in length; Figure B shows a close-up of one of its ends. The object in Figure C measured 237 micrometers in length. The object in Figure D measured 225 micrometers in length. What is your diagnosis? Based on what criteria?

Figure A

Figure A

Figure B

Figure B

Figure C

Figure C

Figure C

Figure C

This case and images were kindly provided by Emory Johns Creek Hospital, Johns Creek, GA.

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