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 features objects seen in a human stool specimen and measure approximately 80 micrometers in length. What’s the identification?

By Bobbi Pritt, M.D. • April 17, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features a finding in a concentrated stool specimen. The scale bars each represent 2.5 micrometers. What’s the identification?

By Bobbi Pritt, M.D. • April 10, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case: “Your boss brings in some wormy things and mentions that ‘his cat regurgitated these in the morning’.” What is your diagnosis? Risk for humans?

By Bobbi Pritt, M.D. • April 3, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features objects seen in a liver cyst aspirate. What’s the identification?

By Bobbi Pritt, M.D. • March 27, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features the following objects found in stool of a toddler living in the Oceania region. There were motile and described as “rice like”. Microscopic examination of the expressed material revealed structures measuring 25-35 µm in diameter. What’s the identification?

By Bobbi Pritt, M.D. • March 20, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features the following, seen in a scraping of a papule from a patient with rosacea. What’s the identification?

By Bobbi Pritt, M.D. • March 13, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features objects seen in a stool specimen (direct wet prep) from a child with watery diarrhea. The objects measure approximately 40-45 µm in length. What’s the identification?

By Bobbi Pritt, M.D. • March 6, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features arthropods that are being reared to better understand their role as vectors of a human pathogen in the Belize region. What pathogen is this?

By Bobbi Pritt, M.D. • February 27, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features the following objects that were seen in a wet mount of a concentrated stool specimen. The specimen was obtained from a West African baboon, but this finding may also be seen in human stool specimens. What’s the identification?

By Bobbi Pritt, M.D. • February 20, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features the following that was noted in skin scrapings from an elderly man. What’s the identification?

By Bobbi Pritt, M.D. • February 13, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features the following objects that were seen on a wet mount (with iodine) of a concentrated stool specimen (400x original magnification). Size is between 15 and 20 µm in length. What’s the identification?

By Bobbi Pritt, M.D. • February 6, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features the following objects that were seen in a wet mount of a concentrated stool specimen from a 50-year-old woman. They measure approximately 50-60 micrometers in greatest dimension. What’s the identification?

By Bobbi Pritt, M.D. • January 30, 2019

Every week, Mayo Clinic microbiologist Bobbi Pritt, M.D., posts a new Parasite Wonders case. This week’s case features a middle-aged man who recently returned from Tanzania. He presented with multiple furuncular lesions. What’s the identification?

By Bobbi Pritt, M.D. • January 23, 2019