Creepy Dreadful Wonderful Parasites

For this week's case, I thought you might enjoy seeing a 'potpourri of parasites' from a stool concentrate wet preparation. Whic...

Answer: Ova of Ascaris lumbricoides (upper center/right), Trichuris trichiura (left), and Taenia species (bottom, center/right). The eggs...

The following were incidental findings on seen on intestinal biopsies. Diagnosis? (CLICK ON IMAGES TO ENLARGE) x20 original magnification x...

Answer: Whipworm ( Trichuris trichiura ) Shown in this case are sections of a round worm in the colonic mucosa. The presence of cross-sect...

The below photographs are of H&E stained sections from an orchiectomy specimen. The patient is a Californian man with a complaint of ...

Answer: Adult filarial worm, female Differential diagnosis includes Brugia and Wuchereria species, including zoonotic Brugia. Additional hi...

This week's case is somewhat challenging. The following objects were seen on a peripheral blood film from a patient who recently immigra...

Answer: Loa loa The key features shown in this case are the presence of a non-staining sheath (below) , correct size range, and nuclei tha...

The following is a concentrated stool specimen stained with a modified acid fast stain. The patient had reported to his physician after a w...

Answer: Cyclospora cayetanesis oocysts The size, history, and strong acid fast positivity are consistent with a diagnosis of cyclosporiasis...