Abstract
A case of vanishing tumor of the terminal ileum due probably to anisakiasis was reported. A 66-year-old man visited our hospital because of abdominal pain. Radiological and ultrasonic examination revealed ileus of the small intestine. After improving ileus, endoscopic examination showed a submucosal tumor of the terminal ileum. The histological examination revealed marked eosinophilic infiltration in the submucosal layer. The second endoscopic examination 19 days later revealed reduction in size. No abnormality was found about 7 weeks later. The fact that he ate slices of raw squid in the previous daytime, and the positivity of anisakisspecific IgE antibody suggested that this case was anisakiasis of the small intestine.
