The left edge reached left axillary posterior line in 29 cases. The place connecting left lateral lobe with beaver tail liver was near the left anterior axillary line,and might be relatively narrow.

• 左肝向左伸延部分超越腋中线 ,其中 2 9例达到腋后线 ,与左外叶连接处位于左腋前线附近 ,可相对狭窄。