Case of the Week 565

This week's case was generously donated by Professor Agnes Kurniawan from the University of Indonesia. The following motile structure was reported to emerge from the anus of a man from rural Indonesia. He had no other gastrointestinal symptoms. 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.

This structure was expressed from the submitted object:

Answer to Case 565:

Bertiella species

Bobbi Pritt, M.D.

Bobbi Pritt, M.D.

Bobbi Pritt, M.D., is Director of the Clinical Parasitology Laboratory in Mayo Clinic's Department of Laboratory Medicine and Pathology. Her research interests are in clinical parasitology, vector-borne diseases, trainee education, and appropriate test utilization.