Intestinal capillariasis diagnosed by endoscopic biopsy.

Many new parasitic infections have emerged in Korea, with >35 new species appearing since the 1980s. Among them, Capillaria species are unique for contributing to morbidity in many countries as well as in Korea. Since the first reported case of a 41-year-old male patient diagnosed with intestinal capillariasis in 1991, a total of six cases have been reported thus far. In this case report, we present another imported case of intestinal capillariasis in Korea, in which a 42-year-old male patient presented with intractable diarrhea and weight loss. The diagnosis was confirmed by biopsy of the ileum. The pathognomonic radiographic presentation of a ribbon-like appearance in a small bowel series was crucial in raising an early suspicion of capillariasis and in deciding to perform diagnostic biopsy.