高悪性度の食道ＧＩＳＴの１切除例

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  • RESECTION OF ESOPHAGEAL GASTROINTESTINAL STROMAL TUMOR WITH HIGH-GRADE MALIGNANCY-A CASE REPORT-

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A rare case of gastrointestinal tumor of the esophagus is reported. The patient was a 69-year-old woman who was referred to our department for an abnormal shadow on her chest x-ray and severe anemia. A computed tomography scan of the chest revealed a solid tumor, 8cm in size, adjacent to the esophagus in the left posterior mediastinum. The tumor was resected and measured 10×10×8.5cm in size. Pathological examination revealed that the tumor was composed of spindle cells with moderate cellularity and a high mitotic rate. Immunohistochemically, the tumor cells were positive for c-kit and CD34. The tumor was diagnosed as GIST originating in the esophagus with high-grade malignancy. Esophageal GISTs with high malignant potential are rare, and thus, we need to carefully monitor the patient's clinical course.

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