Case of the Week 586

It's now time for our monthly case by Idzi Potters and the Institute of Tropical Medicine, Antwerp.

The following structures were found in an unstained wet mount from a Belgian patient without any recent travel abroad. The patient reports intestinal discomfort for approximately 1 week. The structures measure approximately 20 micrometers in length. What's the identification?

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 586:

Mushroom spores. Not a parasite.

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.