肺癌·气阴两虚证(lung cancer with syndrome of deficiency of both qi and yin)是指元气不足,阴津亏损,以咳嗽痰少,或痰稀而黏,咳声低弱,气短喘促,神疲乏力,面色无华,形瘦恶风,口干少饮,午后颧红,自汗或盗汗,小便短少,大便干结,舌红,苔少而干,脉细弱等为常见症的肺癌证候。