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A case of intraductal tubulopapillary neoplasm(ITPN)of the pancreas with gradual radiologic clarification over a long-term course Takumasa Takemoto 1 1Department of Diagnostic Radiology NHO Shikoku Cancer Center Keyword: ITPN長期経過 , 長径16.5cm , FDG-PET pp.529-534
Published Date 2026/5/10
DOI https://doi.org/10.18888/rp.0000003136
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Intraductal tubulopapillary neoplasm(ITPN)is a rare intraductal pancreatic tumor characterized by highly atypical epithelial cells with minimal or absent mucin production. We present a case of ITPN that was incidentally identified during routine postoperative surveillance following surgery for right ovarian cancer. On retrospective review of non-contrast CT images obtained over a 7-year period, mild dilatation of the main pancreatic duct was initially observed, became more conspicuous during follow-up, and subsequently became less apparent. These imaging findings suggested a slowly growing intraductal lesion that progressively occupied the lumen of the main pancreatic duct.


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電子版ISSN 印刷版ISSN 0009-9252 金原出版

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