When left lobes are lobulated,the existence of partly symphysic superior Lobe of singular segment,the existence of extra horizontal fissure and of the atypical trilobate lobe are significalnt in...

• 左肺外形分叶中，完全和不完全水平裂的存在及左肺的不典型三叶分型，在临床影像学检查中具有重要意义；