In lncRNA expression analysis conducted on EBC samples derived from patients with NSCLC and healthy controls, the expression profiles of MALAT1, HOTAIR, PVT1, NEAT1, ANRIL, and SPRY4-IT1 have been found, and an association between these expression profiles and molecular pathogenesis of LC has been established. The gene discussed is PVT1; the disease is laryngotracheoesophageal cleft.