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HOME > J Pathol Transl Med > Volume 35(1); 2001 > Article
Case Report Gastric Collision Tumor (Adenocarcinoma and Neuro-endocrine Carcinoma): A Report of Two Cases.
Ho Sung Park, Ja Myoung Chung, Woo Sung Moon, Myoung Jae Kang, Dong Geun Lee
Journal of Pathology and Translational Medicine 2001;35(1):76-79
DOI: https://doi.org/
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Departments of Pathology, Chonbuk National University Medical School, Chonju 561-712, Korea. mjchung@moak.chonbuk.ac.kr

Concurrence of adenocarcinoma and neuroendocrine carcinoma in the gastrointestinal tract has rarely been observed. We report two cases of gastric collision tumors (adenocarcinoma and neuroendocrine carcinoma) that developed in a 64-year-old man and a 71-year-old man. In both cases, there was a single ulcerative lesion in the stomach. Histologically, the gastric lesions were composed of two discrete lesions: tubular adenocarcinoma at the edge of an ulcer and neuroendocrine carcinoma in the ulcer base. We will discuss collision and composite tumors.

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