The Follicular Lymphoma, EZH2 Mutation, COBAS test is a real-time, allele-specific PCR test approved by the US Food and Drug Administration (FDA) for the qualitative detection of common mutations in the enhancer of zeste 2 polycomb repressive complex 2 (EZH2) gene in patients with follicular lymphoma.1 Testing is performed on DNA extracted from formalin-fixed, paraffin-embedded (FFPE) follicular lymphoma tumor tissue and identifies the following variants: Y646N, Y646F or Y646X (Y646H, Y646S, or Y646C), A682G, and A692V.