Perspectives

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case was donated by Blaine Mathison and Marc Couturier. The following forms were seen on peripheral blood smears. No travel history is available at this time. How would you recommend reporting out this case? Are there any additional studies you would recommend?

By Bobbi Pritt, M.D. • October 16, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. It’s time for our first case of the month by Idzi Potters and the Institute of Tropical Medicine, Antwerp. The patient is a 50 yo Belgian patient returning from Italy with intestinal complaints coughs up the following worm. What’s the identification?

By Bobbi Pritt, M.D. • October 9, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case was generously donated by Dr. David Hernandez Gonzalo. The patient is a middle-aged male who presented with abdominal discomfort and nausea. An endoscopy was performed which revealed the following object in the gastric antrum. What’s the identification?

By Bobbi Pritt, M.D. • October 2, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features photos and videos from my fabulous Technical Specialists, Heather Arguello and Emily Fernholz. The following were seen in bronchoalveolar lavage fluid. What’s the identification?

By Bobbi Pritt, M.D. • September 25, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case is a composite photo Dr. Pritt created for her 2019 calendar for the month of September. The accompanying questions are: What is the parasite shown? (measure ~60 micrometers long) Why is this a suitable parasite for September? What is the significance of the other objects in the picture?

By Bobbi Pritt, M.D. • September 18, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. is our monthly case by Idzi Potters and the Institute of Tropical Medicine, Antwerp. It’s short and sweet: The following was found in a stool specimen from a 3-year-old child with diarrhea. It measures approximately 80 micrometers in diameter. What’s the identification?

By Bobbi Pritt, M.D. • September 11, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case presents a bit of a conundrum from a 50 year old woman with recent travel to Kenya. What is the identification based on the blood smear? How might this correlate with the rapid antigen test?

By Bobbi Pritt, M.D. • August 28, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week, Dr. Pritt’s case involves a parasite found in some fresh salmon. What’s the identification?

By Bobbi Pritt, M.D. • August 21, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case was donated by Dr. Neil Harris and Dr. Stacy Beal. The patient is an infant with a history of tracheobronchomalacia and “eosinophilia” on prior bronchoscopy. A routine complete blood count was negative without evidence of peripheral eosinophilia. The following structures were seen on a Giemsa-stained bronchoalveolar lavage specimen using the 100x objective. They have a diameter of 1-3 micrometers. What’s the identification?

By Bobbi Pritt, M.D. • August 14, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week, Dr. Pritt posted her 555th case. In honor of reaching this number, she is asking readers to try to think of things to do with parasites that involve the number five. If you have anything to share, please post it as a comment on her blog.

By Bobbi Pritt, M.D. • August 7, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case was generously donated by Florida Fan. The following are seen on Giemsa-stained thick and thin blood films. No history is immediately available. What’s the Diagnosis? Any additional information you would like?

By Bobbi Pritt, M.D. • July 31, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s (interesting but somewhat disturbing) case was generously donated by Dr. José A. T. Poloni. The following was submitted from a fresh (unfixed) stool specimen. What’s the most likely identification?

By Bobbi Pritt, M.D. • July 24, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case is from Blaine Mathison. The following were seen on a trichrome-stained stool specimen. They averaged 5 to 7 micrometers in greatest dimension. A Giardia antigen test was positive. What’s the identification?

By Bobbi Pritt, M.D. • July 17, 2019