pigmentary degeneration of corpus callosum

例句：

1. 1. The patient's conditionwas diagnosed as pigmentary degeneration ofthe corpus callosum, whichis a rare neurological disorder.
   患者的病情被诊断为胼胝体色素变性，这是一种罕见的神经性疾病。
2. 2. The patient's family history revealedthat they had a relative withpigmentary degeneration of the corpus callosum, indicating a geneticpredisposition.
   患者的家族病史显示，他们有一个亲戚患有胼胝体色素变性，这表明存在遗传倾向。
3. 3. The patient's cognitive function began to decline after thediagnosis of pigmentary degeneration of thecorpus callosum, leading tosignificant difficulties in daily activities.
   在诊断出胼胝体色素变性后，患者的认知功能开始下降，导致日常生活出现显著困难。