Creepy, Dreadful, Wonderful Parasites

Creepy, Dreadful, Wonderful Parasites

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case presents the following objects that were seen in a Papanicolaou-stained urine specimen from an elderly man with hematuria. They varied in size, measuring ~ 70 micrometers in length. All images were taken using the 40x objective. What is the identification?

By Bobbi Pritt, M.D. • October 18, 2017

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case presents the following objects that were seen in a urine specimen obtained from a 16-year old male from Northern Africa. The urine was noted to be grossly bloody. What is the identification?

By Bobbi Pritt, M.D. • October 11, 2017

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case presents a 60 year-old Belgian woman with a long history of travel to sub-Saharan Africa. She presented with persistent upper abdominal discomfort and radiologic imaging revealed a large liver cyst.What is the identification?

By Bobbi Pritt, M.D. • October 4, 2017

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case presents a toddler with high fever and tachycardia. The patient had come to the U.S. from Uganda 16 months prior to presentation and had not traveled outside of the country since. The following are representative fields from the peripheral blood smear. What is the identification?

By Bobbi Pritt, M.D. • September 27, 2017

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case presents a motile object that was submitted along with an adult “Ascaris lumbricoides.” The specimen source is stool. What is the identification?

By Bobbi Pritt, M.D. • September 20, 2017

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case is a stool specimen from an elderly man from Kentucky who presented with an approximate 50-pound unintentional weight loss over the past several months as well as diarrhea and abdominal cramping. He reported no travel history outside of the United States. What is the diagnosis?

By Bobbi Pritt, M.D. • September 6, 2017

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s fun photograph was donated by Dr. Graham Hickling. What is the arthropod shown here, and what is the name of the behavior it is displaying?

By Bobbi Pritt, M.D. • August 30, 2017

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. 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?

By Bobbi Pritt, M.D. • August 25, 2017

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case presents a specimen seen in a liquid culture of a skin biopsy using Tobie Sang Lapin (TSL) medium (Phase contrast, x1000 magnification). The specimen was first ground in a Dounce tissue grinder. What is the diagnosis?

By Bobbi Pritt, M.D. • August 16, 2017

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features a middle-aged man from Nigeria who presented with signs of increased intracranial pressure, including nausea and vomiting. An MRI showed dilated ventricles and irregular lesions in the cerebellum. What is the identification?

By Bobbi Pritt, M.D. • August 9, 2017

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case presents a female patient in her 30’s who passed the following object in her stool. What is the identification?

By Bobbi Pritt, M.D. • August 2, 2017

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features a specimen that was extracted from the leg of a 70-year-old man who had recently returned from a trip to Costa Rica. It measures approximately 1.5 cm in length. What is the identification?

By Bobbi Pritt, M.D. • July 26, 2017

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case presents a biphasic population of organisms that was seen after corneal scrapings were inoculated onto a non-nutrient agar overlain with Escherichia coli and incubated for several days. What is the identification?

By Bobbi Pritt, M.D. • July 12, 2017