A Case of Colonic Collision Tumor (Adenocarcinoma and Neuroendocrine Carcinoma) | Zendy

Dong Wan Kim | Zendy; Sang Hyun Kim | Zendy; Jong Min Yoon | Zendy; Tae Yung Jun | Zendy; Su Jin Lee | Zendy; Yang Jin Kim | Zendy; Ho Yung Kim | Zendy; Jin Sook Lee | Zendy

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A Case of Colonic Collision Tumor (Adenocarcinoma and Neuroendocrine Carcinoma)

Author(s) -

Dong Wan Kim,

Sang Hyun Kim,

Jong Min Yoon,

Tae Yung Jun,

Su Jin Lee,

Yang Jin Kim,

Ho Yung Kim,

Jin Sook Lee

Publication year - 2012

Publication title -

korean journal of gastroenterology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.203

H-Index - 25

eISSN - 2233-6869

pISSN - 1598-9992

DOI - 10.4166/kjg.2012.60.5.325

Subject(s) - medicine , hematochezia , colonoscopy , adenocarcinoma , neuroendocrine carcinoma , lesion , neuroendocrine tumors , carcinoma , pathology , gastroenterology , radiology , colorectal cancer , general surgery , cancer

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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