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자료유형
학술저널
저자정보
Dae Gon Ryu (Department of Internal Medicine, Pusan National University School of Medicine and Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan H) Cheol Woong Choi (Department of Internal Medicine, Medical Research Institute, Pusan National University School of Medicine and Research Institute for Convergence of Biomedical Science and Technology, Pusan N)
저널정보
대한상부위장관 헬리코박터학회 Korean Journal of Helicobacter Upper Gastrointestinal Research Korean Journal of Helicobacter Upper Gastrointestinal Research 제24권 제3호
발행연도
2024.9
수록면
276 - 280 (5page)

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A 48-year-old man presented to our hospital for evaluation of melena. Abdominal computed tomography (CT) revealed an endophytic contrast-enhanced mass (approximately 9 cm) in the gastric fundus and upper body. CT showed no evidence of metastasis to other organs. Endoscopic examination revealed a large mass accompanied by an exudate and signs of surface hemorrhage. The shape of the mass resembled that of a subepithelial tumor, and >50% of the mucosa was peeled off. Endoscopic ultrasonography revealed hyperechoic spreading and dotor rod-shaped anechoic lesions arranged within an overall hypoechoic mass. The patient underwent total gastrectomy with lymph node dissection and was diagnosed with undifferentiated pleomorphic sarcoma without lymph node metastasis. Undifferentiated pleomorphic sarcoma, a high-grade aggressive soft tissue sarcoma, predominantly involves the extremities and rarely the stomach. It is usually asymptomatic but tends to grow rapidly. Endoscopic imaging performed a year prior to presentation was unremarkable. We report a case of a gastric undifferentiated pleomorphic sarcoma that presented as a rapidly growing subepithelial tumor. Malignancies other than a gastrointestinal stromal tumor should be considered in the differential diagnosis in patients presenting with a rapidly growing gastric subepithelial tumor.

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