The remaining 1 (Case 4 in Table 1) man visited a local clinic with a lower abdominal discomfort and underwent a colonoscopy to rule out lower intestinal lesions. The physician found some movable whitish living segments of a tapeworm in the sigmoid colon and took out the worm by a forcep (Fig. 1D). After cutting some length of the strobila, it was seen that the remaining part of the worm entered deeply to the upper part of the colon. The length of the specimen obtained was around 40, and the patient needed a light sedation due to the nervousness of seeing a long tapeworm collected from his body. He was living in Bundang-gu, near Seoul and had no health problems and no travel history to a foreign country within the past several months. One of his favorite foods was the trout and salmon in raw dishes with drinking liquor. Blood biochemical analysis and serological analysis were not done.