The analysis, conducted on genomic DNA of a tumor extracted from formalin-fixed paraffin-embedded (FFPE) tissue, targeting frequently mutated 59 genes (including EGFR, KRAS, ALK, ROS1, BRAF, HRAS, NRAS, NTRK, AKT1, PIK3CA, KIT, and PDGFRA), disclosed no gene mutations or fusions. Here, PIK3CA is linked to neoplasm.