A CASE OF ANISAKIASIS PRESENTING SUBMUCOSAL TUMOR OF ASCENDING COLON

Abstract

A case of anisakiasis presenting a submucosal tumor at the ascending colon, was reported. A 67-year-old woman was admitted to our hospital because of abdominal symptoms. Physical examination and hematological examination revealed almost no abnomalities. Radiographic and endoscopic examinations of the colon showed a submucosal tumor at the ascending colon (Figure 1, 2). Resection of the right colon was performed and microscopical examination of the tumor revealed an eosinophilic granulom with an old larva. (Figure 3, 4) As Ouchterlony's test for an antibody against anisakis was also positive findings, this case was diagnosed as a colon anisakiasis.