Superior mediastinum上纵隔Anterior mediastinum前纵隔Middle mediastinum中纵隔Posterior mediastinum后纵隔Inferior mediastinum下纵隔T4 =第4胸椎.分部:自胸骨角至第4胸椎下缘连一水平线,其上、下方分别为上纵隔及下纵隔。如N = Nerve神经,A = Artery动脉,V = Vein静脉,E = Esophagus食管,L = Lymph淋巴,T = Trachea气管,G = Thymus Gland胸 ......