trunk of corpus callosum

例句：

1. 1.The patient's condition is stable, but the trunk of the corpus callosum is still swollen.
   患者的病情稳定，但胼胝体干仍然肿胀。
2. 2. The neurosurgeon performed a craniotomy to remove the tumor from the trunk of the corpus callosum.
   神经外科医生进行了开颅手术，将肿瘤从胼胝体干中切除。
3. 3. The patient was diagnosed with multiple sclerosis, and the trunk of the corpus callosumwas involved in the progression of the disease.
   患者被诊断出患有多发性硬化症，胼胝体干参与了该病的进展过程。