Results 15 cases of GIST showed the endophytic or exphytic tumors with heterogeneous density,corresponding to the degeneration,hemorrhage necrosis and cystic changes.

• 结果 胃肠道间质瘤15例表现为腔内或腔外生长的肿块，常伴表面溃疡，密度多不均匀，对应于病理的变性、出血和坏死。