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KMID : 0870420130170040186
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Korean Journal of Hepato-Biliary-Pancreatic Surgery
2013 Volume.17 No. 4 p.186 ~ p.190
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Collision tumor of the ampulla of Vater - Coexistence of neuroendocrine carcinoma and adenocarcinoma: report of a case
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Kim Hee-Joon
Choi Byung-Gwan
Kim Choong-Young
Cho Chol-Kyoon
Hur Young-Hoe
Kim Jin-Woong
Lee Jae-Hyuk
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Abstract
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Herein, we present a case of coexisting neuroendocrine carcinoma and conventional adenocarcinoma (collision tumor) in the ampulla of Vater, which has seldom been reported in the literature. A 51-year-old man presented with a month history of jaundice. MRCP disclosed about 1.9×1.8 cm sized heterogeneously enhancing mass in ampulla of Vater, causing obstructions of distal common bile duct. He underwent pylorus-preserving pancreaticoduodenectomy under the diagnosis on ampulla of Vater cancer. Pathologically, sections on the ampulla of Vater showed conventional ductal adenocarcinoma extended and collided with poorly differentiated neuroendocrine carcinoma. In conclusion, we hereby presented a case of coexisting neuroendocrine carcinoma and conventional adenocarcinoma in the ampulla of Vater.
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KEYWORD
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Collision tumor, Ampulla of Vater, Neuroendocrine carcinoma, Adenocarcinoma
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