primary degeneration of corpus callosum

例句：

1. 1. The patient's condition worsened significantly after surgery, with primary degeneration of the corpus callosumevident in the brain scan.
   手术后，患者的病情显著恶化，大脑扫描显示胼胝体初级变性。
2. 2. The research focused on themechanisms underlying primary degeneration of the corpus callosum and its impact oncognitive function.
   该研究专注于理解胼胝体初级变性的机制及其对认知功能的影响。
3. 3. The study found that genetic factors playa significant role in the primary degenerationof the corpus callosum.
   研究发现遗传因素在胼胝体初级变性中起着重要作用。