Skip directly to search Skip directly to A to Z list Skip directly to site content
CDC Home
For questions about DPDx, contact us

Monthy Case Studies - 2012

Case #328 - July, 2012

A 25-year-old woman traveled to Kenya and Uganda for three months of field work in public health entomology. Upon returning to the United States, she noticed a painful lesion on her left big toe, just at the intersection with the nail (Figure A). She visited her primary care physician. While applying pressure to the region during examination, eggs appeared to exude from the lesion (Figure B). Eggs were sent to Microbiology for diagnostic assistance. The eggs measured on average 600 micrometers in length. What is your diagnosis? Based on what criteria?

Figure A

Figure A

Figure B

Figure B

Acknowledgements: This case and images were kindly provided by the USDA, Manhattan, KS.

Show Answer

Answer to Case #328

This was a case of tungiasis caused by the chigoe flea, Tunga penetrans. Diagnostic features included the presence of eggs within the size range for Tunga, as well as the location on the host. People are typically infested when walking bare-foot or in sandals in sandy areas of endemic regions for the disease.

More on: Tungiasis

Back to Top

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.

For questions about DPDx, contact us
  • Page last reviewed November 29, 2013
  • Page last updated November 29, 2013
  • Content source: Global Health - Division of Parasitic Diseases and Malaria
  • Notice: Linking to a non-federal site does not constitute an endorsement by HHS, CDC or any of its employees of the sponsors or the information and products presented on the site. The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Road Atlanta, GA 30329-4027, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO