Raillietiniaisis in a Toddler From Hawaii: A Case of Mistaken Tapeworm Identity.

We present the first reported case from the United States of human infection with the intestinal cestode Raillietina, a parasite primarily of rodents and poultry. As the differential diagnosis between the morphologically similar Dipylidium caninum was challenging, we discuss the biology, epidemiology, and clinical management of this rare parasite.