ALK and neoplasm: The CE-IVD IdyllaTM GeneFusion Assay (Biocartis, Mechelen, Belgium) is an RNA-based fully automated RT-PCR assay, designed to concurrently detect presence of ALK, ROS1, RET fusions and MET exon 14 skipping in formalin-fixed, paraffin-embedded (FFPE) tumor tissue sections.