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Objective To investigate the clinicopathological and molecular genetic characteristics of gastrointestinal stromal tumor ( GISTs) with significant cystic changes, and to assess their biological behavior. Methods Clinicopathological features of 7 patients with cystic GISTs treated at the Zhongshan Hospital of Fudan University from February 2005 to January 2010 were summarized retrospectively. The mutations status of
Objective To investigate the clinicopathological and molecular genetic characteristics of gastrointestinal stromal tumor (GISTs) with significant cystic changes, and to assess their biological behavior. Methods Clinicopathological features of 7 patients with cystic GISTs treated at the Zhongshan Hospital of Fudan University from February 2005 to January 2010 were summarized retrospectively. The mutations status of