Case of the Week 591

This weeks case was generously donated by Dr. Michele Bloomer. The following object was removed from the eye socket of an adult patient. According to the surgeon, there were numerous similar-appearing objects present, but only 1 was submitted to the laboratory. About 1 month prior, the patient had undergone surgery to remove his eye as it was involved by a large cancerous growth that had extended from his eyelid. 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 591:

L3 larva of Phormia species

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.