Microsatellite instability diagnosis using the fully automated Idylla platform: feasibility study of an in-house rapid molecular testing ancillary to immunohistochemistry in pathology laboratories.

At the era when the determination of MSI/MSS status is becoming important for rapid treatment choices, the Idylla MSI Assay consists of a valuable easy-to-perform diagnostic tool that allows, complementary to MLH1, PMS2, MSH2 and MSH6 immunohistochemistry, the diagnosis of MSI/MSS status in a single day.