| 单词 | Lateral Sclerosis,Primary |
| 释义 | Lateral Sclerosis,Primary《英文msh词典》Lateral Sclerosis,Primary [入口词] Lateral Sclerosis,Primary [主题词] Motor Neuron Disease [英文释义] Diseases characterized by a selective degeneration of the motor neurons of the spinal cord,brainstem,or motor cortex. Clinical subtypes are distinguished by the major site of degeneration. In AMYOTROPHIC LATERAL SCLEROSIS there is involvment of upper,lower,and brainstem motor neurons. In progressive muscular atrophy and related syndromes (see MUSCULAR ATROPHY,SPINAL) the motor neurons in the spinal cord are primarily affected. With progressive bulbar palsy (BULBAR PALSY,PROGRESSIVE),the initial degeneration occurs in the brainstem. In primary lateral sclerosis,the cortical neurons are affected in isolation. (Adams et al.,Principles of Neurology,6th ed,p1089) |
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