Case of the Week 598

By Bobbi Pritt, M.D. • July 8, 2020

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Welcome to the first case of the month provided by Idzi Potters and the Institute of Tropical Medicine, Antwerp. The following object was obtained during colonoscopy from a 35-year-old woman. It measures approximately 4 cm in length. Travel history is unknown. 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 598:

Trichuris trichiura, the human whipworm.

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.