Trends in primary surgical resection and chemotherapy for metastatic colorectal cancer, 2000-2016.

e16000 Background: When, whether and in whom resection of the primary tumor for patients with metastatic colorectal cancer (CRC) is indicated remains incompletely elucidated, although a recent randomized trial (JCOG1007, presented at GI ASCO 2020) showed no survival benefit in resection of asymptomatic primary tumors in this population. Given the emergence of multiagent chemotherapy, surgery may be used less, but patterns of care for metastatic...