text: 病变肌肉呈对称分布，近端肌明显，如髋、肩、颈屈肌和腹肌；受累肌肉偶呈水肿样，稍硬，轻压痛；肌力减退，患儿不能从卧位站起，不能下蹲或下蹲后不能起立，上下楼梯困难；重症累及肢体远端肌肉，患儿可完全不能动弹。
entities.entity: 肌肉
entities.label: bod
entities.entity: 近端肌
entities.label: bod
entities.entity: 髋
entities.label: bod
entities.entity: 肩
entities.label: bod
entities.entity: 颈屈肌
entities.label: bod
entities.entity: 腹肌
entities.label: bod
entities.entity: 肌肉
entities.label: bod
entities.entity: 水肿
entities.label: dis
entities.entity: 稍硬
entities.label: sym
entities.entity: 轻压痛
entities.label: sym
entities.entity: 肌
entities.label: bod
entities.entity: 肌力减退
entities.label: sym
entities.entity: 从卧位站起
entities.label: sym
entities.entity: 不能下蹲
entities.label: sym
entities.entity: 下蹲后不能起立
entities.label: sym
entities.entity: 上下楼梯困难
entities.label: sym
entities.entity: 肢体远端肌肉
entities.label: bod
entities.entity: 不能动弹
entities.label: sym