Low Frequency of Mutation Testing in the United States

Objective: The objective of this study was to determine whether there were survival differences associated with KIT mutation testing, type of KIT mutations, and other clinical variables in patients with localized or metastatic gastrointestinal tumor (GIST). Methods: Adult patients with GIST were extracted from the Surveillance Epidemiology and End Results (SEER) database from 2010 to 2015 with follow-up through 2016. Overall survival (OS) and...