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KMID : 0614620120600050325
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Korean Journal of Gastroenterology
2012 Volume.60 No. 5 p.325 ~ p.329
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A Case of Colonic Collision Tumor (Adenocarcinoma and Neuroendocrine Carcinoma)
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Kim Dong-Wan
Kim Sang-Hyun
Yoon Jong-Min
Jun Tae-Young
Lee Su-Jin
Kim Yang-Jin
Kim Ho-Yung
Lee Jin-Sook
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Abstract
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Collision tumors of the colon are rare. A 54-year-old man was referred to our hospital for the evaluation of hematochezia. Colonoscopy demonstrated the presence of about 3 cm sized mass in the rectosigmoid junction. After surgical resection, the colonic lesion was histologically composed of two discrete lesions: adenocarcinoma in the superficial layer and poorly differentiated neuroendocrine carcinoma in the deeper layer. We report this case of colonic collision tumor (adenocarcinoma and neuroendocrine carcinoma) with a review of the literature.
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KEYWORD
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Collision tumor, Neuroendocrine carcinoma, Adenocarcinoma, Colon
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