Case of the Week 561

This week's case features photos and videos from my fabulous Technical Specialists, Heather Arguello and Emily Fernholz. The following were seen in bronchoalveolar lavage fluid. See a video of this parasite here. 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 has posted going back to 2007 (in an easy-to-search "A through Z" format) and also offers a flashcard feature.

Answer to Case 561:

Strongyloides stercoralis L3 (filariform) larvae

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.