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About Bobbi Pritt

I'm a AP/CP trained pathologist with a special love for all things infectious. My favorite organisms are parasites, and that is the focus of my clinical practice. I did my pathology residency at the University of Vermont (great program), and then a one-year fellowship in Clinical Microbiology at Mayo Clinic, Minnesota. I then was fortunate enough to spend a year in London at the London School of Hygiene and Tropical Medicine on a scholarship, where I got a Diploma in Tropical Medicine and a Masters degree in Medical Parasitology. My favorite things to do are teaching, writing, directing the Clinical Parasitology Laboratory, and compiling cases for an Atlas that I hope to publish in 2010. I love to collaborate with like-minded investigators, and am always looking for new parasite cases for the Case of the Week. Please feel free to write in and share your comments, questions, and cases with me!
Contact Bobbi Pritt:
E-mail | Website

Posts by Bobbi Pritt

Posted by

Date
October 2, 2010
5:40 pm

Tagged

Category
Cases, Microbiology

Case of the Week 58

The following were seen on splenic aspirate. Diagnosis?

Posted by

Date
October 2, 2010
5:36 pm

Tagged

Category
Cases, Microbiology

Answer to Case of the Week 57

Answer: Entamoeba histolytica/dispar Congratulations to all of the viewers who wrote in with the answer – you recognized that the morphologic features and size were consistent with these two closely related protozoa. E. histolytica is a recognized pathogen, although it only causes disease in approximately 10% of the people it infects. E. dispar, on the [...]

Posted by

Date
September 25, 2010
7:47 pm

Tagged

Category
Cases, Microbiology

Case of the Week 57

Here’s a more straight-forward case than our recent ones: The following object was seen on stool ova and parasite examination and measures approximately 15 micrometers (Modified Trichrome stain, 1000x).

Posted by

Date
September 25, 2010
7:45 pm

Tagged

Category
Cases, Microbiology

Answer to Case of the Week 56

Answer: proglottids of the broad fish tapeworm Diphyllobothrium latum. Congratulations to everyone who got this right! Also in the differential would be proglottids of Taenia spp. and artifacts such as onion skin which may be passed relatively intact and mimic tapeworm segments. However, the diagnosis is easily made by examining the central proglottid structures which [...]

Posted by

Date
July 16, 2010
9:38 am

Tagged

Category
Cases, Microbiology

Case of the Week 56

The following was ‘passed’ in the stool of an otherwise asymptomatic 50 year old woman. (images courtesy of Dr. Washington Winn, Fletcher Allen Health Care, VT) Identification?

Posted by

Date
July 16, 2010
9:35 am

Tagged

Category
Cases, Microbiology

Answer to Case of the Week 55

Answer: Rhinosporidiosis (infection with Rhinosporidium seeberi) Congratulations to Anonymous (x 3!), Kenneth, Chris, Victor, and Santoshpath who all got this correct! The keys to the diagnosis is the clinical history (location in nasal mucosa), exposure history (India), and histopathologic features of a polypoid mass containing mature sporangia (large, thick-walled spherical structures) and smaller internal sporangiospores [...]

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