Abstract
A 65-year-old female was diagnosed as having a tumor in the upper part of the stomach in 1989, however she had been refusing surgery for 7 years. In 1994 she was suddenly admitted with complaints of abdominal pain accompanied with nausea and vomiting. Ultrasonography showed that intussusception of a tumor arising from the upper part of the stomach had occurred into the duodenum. The tumor was resected with part of the gastric wall. The excised specimen was a smooth-faced oval tumor, 6. 5×7. 5 cm in size and weighing 120 g. Histologically, it was diagnosed as a leiomyosarcoma. This paper reported a very rare leiomyosarcoma arising from the upper part of the stomach which showed ball valve syndrome intussusception into the duodenum.
