一般认为肌营养不良是肌肉本身的疾患,有人将其归因于骨髂肌的原发变性。但近来研究表明,其病因可能包含其他一些因素。某些临床诊断为肢带型或面肩肱型的肌营养不良患者,通过形态学检查证实为脊髓性肌萎缩。假 Muscular dystrophy is generally believed to be a condition of the muscle itself, some attributing it to primary degeneration of the bony iliac muscle. However, recent studies have shown that the etiology may include other factors. Some patients with muscular dystrophy, who are clinically diagnosed as limb or shoulder and brachial muscular dystrophy, have been confirmed by morphological examination as spinal muscular atrophy. false