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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
Bobbi Pritt

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
Bobbi Pritt

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 [...]

Posted by
Bobbi Pritt

Date
June 28, 2010
1:45 pm

Tagged

Category
Cases, Microbiology

Case of the Week 55

Here’s a challenge for all of you: Nasal polyp removed from a 50 year old Indian man with complaints of chronic nasal obstruction. Histologic exam reveals the following:

Posted by
Bobbi Pritt

Date
June 20, 2010
5:10 pm

Tagged

Category
Cases, Microbiology

Answer to Case of the Week 54

Answer: Trypomastigotes and intermediate trypomastigote/amastigote forms of Trypanosoma cruzi. Thanks to everyone who wrote in for this case! This was, admittedly, a tricky case, since it is uncommon to see amastigote-type forms in peripheral blood. The reason these atypical forms were present is because this specimen was grown in culture and then innoculated in peripheral [...]

Posted by
Bobbi Pritt

Date
June 14, 2010
3:19 pm

Tagged

Category
Cases, Hematopathology, Microbiology

Case of the Week 54

The following were seen on a Giemsa-stained thick blood film made from EDTA whole blood. Identification?

Posted by
Bobbi Pritt

Date
June 14, 2010
3:15 pm

Tagged

Category
Cases, Microbiology

Answer to Case of the Week 53

Answer: You should advise him that this is not an Ixodes scapularis tick, which is the agent of Lyme disease, as well as babesiosis and anaplasmosis. Instead, it is a Dermacentor tick, which can transmit Rocky Mountain spotted fever. Unlike I. scapularis, Dermacentor spp. ticks have a “chalise-shaped” anal groove and festoons (not well visible [...]

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