Case of the Week 621

Happy New Year everyone! We are going to kick off the New Year with a fascinating (and challenging) case by Idzi Potters and the Institute of Tropical Medicine, Antwerp.

From Idzi: While I was rummaging through the education-samples, I stumbled upon a strange-looking, small vial, containing a liquid from unknown origin. When I looked at the identification label, I was quite surprised to find a name that sounded like a very exotic parasite during a quick microscopical examination, I found eggs of about 60-70 µm in length. Who can guess which parasite I found? Hint: the source ended up being a cyst near the ear from an African man.

Read Dr. Pritt's blog, Parasite Wonders, and submit your answers, comments, and questions. Also, visit her website, 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 621:

Poikïlorchis (Achillurbainia) congolensis.

Bobbi Pritt, M.D. (@BobbiP)

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.