LAUSR

A 38-year-old man was referred to our hospital for epigastric pain. His symptom had continued more than a month. Physical examination revealed no abdominal tenderness. In laboratory tests, complete blood count, electrolytes and liver enzyme were normal. Esophagogastroduodenoscopy and fluoroscopy found a large submucosal tumor in the gastric fundus (Fig. 1a,b). The lesion had an ulcerative lesion on the top. Biopsy on ulcerative lesion suggested hematopoietic tumor. Two weeks later, the lesion had become considerably enlarged and had granular appearance on the surface (Fig. 1c). A contrast-enhanced computed tomographic examination showed the delayed enhanced mass extended to extramural, and invaded vessels and diaphragm (Fig. 1d).