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KMID : 1103720130690030207
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Journal of the Korean Society of Radiology
2013 Volume.69 No. 3 p.207 ~ p.211
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Imaging Findings of Neuroendocrine Neoplasm in Biliary Duct with Liver Metastasis
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Oh Jung-Hwa
Chung Dong-Jin
Hahn Seong-Tae
Lee Jae-Mun
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Abstract
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A 64-year-old man was transferred to our hospital because of indigestion and jaundice. The initial abdominal CT and MRI revealed a 2.0 cm enhancing mass in the proximal common bile duct (CBD) with several enlarged lymph nodes. The mass was presumed to be a cholangiocarcinoma, and a CBD segmental resection and choledochojejunostomy was performed. However, the final diagnosis was that of a mixed endocrine-exocrine carcinoma, a high-grade neuroendocrine neoplasm. Seven months after the operation, a follow-up abdominal CT study revealed multiple small arterial enhancing nodules in both hepatic lobes. A sono-guided liver biopsy confirmed these as metastastic mixed endocrine-exocrine carcinoma. This case is unique in that the imaging study regarding the neuroendocrine neoplasm of biliary duct has not been previously reported.
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KEYWORD
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Neuroendocrine Neoplasm, Mixed Adenoneuroendocrine Carcinoma, Biliary Duct, World Health Organization Classification
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