“Creepy, Dreadful, Wonderful Parasites” Aug. 18: A Parasitologist’s View of the World
This week's case is from one of Dr. Pritt's fans, which he entitled, "A Beast with Many Faces," due to this parasite's varying appearance with different stains and preparations. What is the identification?
Images are all shown at 1,000X original magnification (each line on the scale bar represents 1 micron).
Here is the key (all from stool):
A - wet preparation
B - iodine-stained wet prep
C - Trichrome stain
D - Wright Giemsa
E - Modified acid fast
F - Modified safranin
Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new case, along with the answer to the previous case. Read Dr. Pritt's blog, Parasite Wonders, and submit your answers, comments, and questions. Also, visit her new 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.
Dr. Pritt started her blog after she completed her fellowship at Mayo Clinic in clinical microbiology. She attended the London School of Hygiene and Tropical Medicine to study parasitology for one year. During that year in England, Dr. Pritt saw some amazing cases, which she shared with her colleagues back at Mayo through her blog. Through word of mouth, people from all walks of life around the globe have become interested in Dr. Pritt’s “case of the week,” and her readership continues to grow.
Note from Dr. Pritt: All opinions expressed here are mine and not my employer's. Information provided here is for medical education only. It is not intended as, and does not substitute for, medical advice. I do not accept medical consults from patients.