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A case of eosinophilic granuloma related to anisakiasis found as a submucosal tumor of the transverse colon Kohei Takenaka 1 1Department of Radiology Fukuoka City Hospital Keyword: 腸アニサキス症 , 緩和型 , 好酸球性肉芽腫 , 粘膜下腫瘍 pp.727-732
Published Date 2024/9/10
DOI https://doi.org/10.18888/rp.0000002762
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A 30–year–old woman with abdominal pain was referred to our hospital after abdominal ultrasound revealed a transverse colon mass. The contrast–enhanced CT and MRI scans showed the mass, whose rim is enhanced but whose inside is not. 18F–FDG–PET/CT showed weak 18F–FDG accumulation. Histopathological examination revealed an eosinophilic granuloma around a degenerative parasite consistent with the characteristics of anisakiasis. Chronic anisakiasis typically forms a submucosal tumor–like lesion and shows pathologically an eosinophilic granuloma around an anisakis larva. Because it is rare and its imaging findings are not established, it is occasionally misdiagnosed and removed by endoscopic or surgical resection. We report the radiological features of the eosinophilic granuloma related to anisakiasis and review the literature on it.


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電子版ISSN 印刷版ISSN 0009-9252 金原出版

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