[A case of gastrointestinal stromal tumor of the stomach which rapidly increased in size over the period of three years].

The patient was a 75-year-old woman. Esophagogastroduodenoscopy revealed a submucosal tumor 2 cm in size on the anterior wall of the cardiac part of the stomach. Three years later, she visited at our hospital with the chief complaints of tarry stool and dizziness.