This week's case involves an object passed in the stool of a teenage boy with recurrent fevers and constipation. His only travel outside North America was to Portugal and Hawaii. Treatment for parasites was ineffective at alleviating his symptoms, and follow-up stool examinations were negative. What is it?
Every week, Mayo Clinic microbiologist Dr. Bobbi Pritt posts a new case, along with the answer to the previous case. Read Dr. Pritt's blog, Creepy, Dreadful, Wonderful Parasites, and submit your answers, comments and questions. Learn more about Dr. Pritt's work, and enjoy science!
Note from Dr. Pritt: All opinions expressed here are mine and not my employer's. Information provided here is for medical education only. It is not intended as, and does not substitute for, medical advice. I do not accept medical consults from patients.