Microsatellite Instability (MSI) for Lynch Syndrome Screening and Guiding Immunotherapy

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Microsatellite instability (MSI) is a hallmark of certain types of cancer. The presence and level of MSI in a tumor sample can offer insight into tumor pathology and inform treatment options, making the evaluation of tumor samples for MSI an important part of understanding the cause and management of many types of cancer. As Dr. Paul Walker, Chief Medical Officer at Circulogene, explains in this video, MSI testing is critically important for solid-tumor patients in particular, for whom the outcome of this test can mean the difference between ineffective and effective standard treatments.