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中性脂肪沉积症(neutral lipid storage disease,NLSD)为一种常染色体隐性遗传的脂质沉积性肌病,包括中性脂肪沉积症伴鱼鳞病(neutral lipid storage disease with iehthyosis,NLSDI)和中性脂肪沉积症伴肌病(neutral lipid storage disease with myopathy,NLSDM)。前者在我国尚未见报道。后者是由PNPLA2(patatin-like phospholipase domain-contain