Case of the Week 572

By Bobbi Pritt, M.D. • December 11, 2019

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This week's cool case is from Dr. Marta Maia. The specimen is skin currettings, and the object below was viewed using a dissecting microscope. The patient had developed a firm, painful 3 mm-diameter lesion on the sole of his foot after a recent vacation in Brazil. During his vacation, he swam in the ocean and walked barefoot on the beach. What's the identification?

Read Dr. Pritt's blog, Parasite Wonders, and submit your answers, comments, and questions. Also, visit her website ParasiteWonders.com, which hosts an archive of classic images from cases Dr. Pritt posted going back to 2007 (in an easy-to-search "A through Z" format) and also offers a flashcard feature.

Answer to Case 572:

Tungiasis, due to the parasitic female sand flea.

Bobbi Pritt, M.D.

Bobbi Pritt, MD, MSc, is a Professor of Laboratory Medicine and Pathology and the Director of the Clinical Parasitology Laboratory at Mayo Clinic in Rochester Minnesota. She is also the Chair of the Division of Clinical Microbiology. Her research interests are in clinical parasitology, vector-borne diseases and the pathology of infectious diseases.