Objective The pathological changes on neuromuscular junction (NMJ) in the patients with myasthenia gravis (MG) or Lambert?Eaton myasthenia syndrome (LEMS) were investigated comparatively.

• 目的探讨重症肌无力（MG）和癌性肌病（LEMS）时神经肌肉接头处（NMJ）的病理变化特点及其意义。