Because of rarity, we reported this case.In long-term MLS, the rigid laryngoscope should be relaxed on a regular time to relieve the compression of tongue base;otherwise, tongue paralysis may happen.

• 由于这种并发症尚属罕见，特提出报告，日后若需要长时间的喉部直达镜显微手术，需定时松弛硬式喉镜以解除对舌根的压迫，避免造成舌运动麻痹。