Dr. Janjigian Discusses MSI Testing in Gastric Cancer

Yelena Y. Janjigian, MD, medical oncologist, Memorial Sloan Kettering Cancer Center, discusses testing for microsatellite instability (MSI) testing in patients with gastric cancer.

Though MSI-high is a relatively rare subset of gastric cancer, it is very important to distinguish these patients, says Janjigian.

MSI status must be routinely tested, Janjigian adds, because even if patients do not meet MSI criteria, a higher mutational burden may increase their chances of responding to therapy.