壁外性発育を示した胃内分泌細胞癌の１例

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  • A Case of Gastric Endocrine Cell Carcinoma with Extramural Growth.

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A 55-year-old man came to our hospital because of a mass in the left upper quadrant of the abdomen. Gastroscopy showed a huge submucosal tumor with two ulcers in the posterior wall of the middle of the stomach. A preoperative diagnosis of type 5'gastric cancer in the middle of the gastric body was made, and total gastrectomy with combined resection of the gallbladder, spleen, and transverse colon was performed. Histopathological examination showed small cells with round or short spindle-shaped nuclei, aligned in a cord arrangement to form a pseudo-rosette. NSE staining, Grimelius staining and chromogranin A staining were positive. The tumor was diagnosed as gastric endocrine cell carcinoma. Gastric endocrine cell carcinoma is very rare and reported to account for 0.06% to 0.08% of gastric carcinomas.

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