Frequent rectal gastrointestinal stromal tumor recurrences in the imatinib era: Retrospective analysis of an International Patient Registry

Rectal gastrointestinal stromal tumor (GIST) is rare and comprises about 3% of GIST.Registry data was collected by the Life Raft Group June 1976 to November 2017. All patients had a histologic GIST diagnosis. Demographic, clinicopathologic, and clinical outcome data were patient reported. Recurrence-free survival (RFS) was analyzed using the Kaplan-Meier method and Cox regression analysis.Of 1798 patients in the database, 48 had localized rectal...