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Oncologic outcome in rectal GIST by imatinib era.
Kaplan-Meier curves are shown depicting OS (A), DSS (B), RFS (C), local RFS (D), and distant RFS (E) for patients in the imatinib era compared to the pre-imatinib era. The number of patients at risk is listed for each time point. Distant recurrence was defined as recurrence outside of the pelvis, typically in the liver or peritoneal cavity. For RFS and local RFS, R2 resections (n=2) were excluded.
