Which of the following statements is true regarding GISTs?
A. Most occur in the small intestineGISTs are a form of sarcoma which occur most commonly (70%) in the stomach. They more frequently present with GI hemorrhage than other small bowel malignancies. They are usually refractory to conventional cytotoxic chemotherapy, but are not usually metastatic on initial diagnosis. A radical lymphadenectomy is not usually required; a segmental resection of the involved portion of the small intestine is usually sufficient surgical treatment.