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KMID : 0359020080360030159
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Korean Journal of Gastrointestinal Endoscopy
2008 Volume.36 No. 3 p.159 ~ p.164
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A Case Study of a Gastric Collision Tumor with an Adenocarcinoma and a Carcinoid Tumor
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Jung Seung-Won
Kim Yun-Soo
Cho Joo-Young
Jung In-Seop
Hong Su-Jin
Ryu Chang-Beom
Kim Jin-Oh
Lee Joon-Seong
Lee Moon-Sung
Jin So-Young
Kim Jae-Joon
Shim Chan-Sup
Kim Boo-Sung
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Abstract
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Adenocarcinoma is the most common malignant gastric neoplasm, contrary to a gastric carcinoid which is relatively uncommon. The occurrence of an adenocarcinoma and a typical carcinoid tumor is rare and are morphologically classified into two subgroups. The first type is a compositetype tumor, which is characterized as a randomly assorted adenocarcinoma and a typical carcinoid tumor. The second type is a collision-type tumor, which is a double tumor with a “side by side” or “overlay” pattern. To the best of our knowledge, only 2 cases of the collision type tumors have been reported in the Korean literature. We have encountered a collision tumor which occurred in the antrum of the stomach and which invaded the regional lymph nodes by means of a highly malignant gastric carcinoid. The following report is a description of the collision tumor case as well as a literature review. (Korean J Gastrointest Endosc 2008;36:159-164)
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KEYWORD
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Carcinoid, Adenocarcinoma, Collision-typetumors
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