IHC testing was positive for anaplastic lymphoma kinase (ALK) protein (2+ staining intensity, 30% of tumor sample; see Figure 2) and neurotrophic tyrosine receptor kinase TRK/NTRK (80%), suggesting that either ALK or TRK/NTRK1/2/3 could be a targetable driver in the tumor. The gene discussed is NTRK1; the disease is neoplasm.