Surgical treatment is mandatory once LPMN is established.One side openig window plus bone fragment rescted and two side openig window plus fone fragment resected is effective surgical approach.

• 2、手术时机愈早愈好，单侧椎板扩大开窗+骨块切除和双侧椎板扩大开窗+骨块切除为有效术式。