malignant tumor of spinal cord

例句：

1. 1. The patient was diagnosed with a malignant tumor of the spinal cord.
   患者被诊断出患有脊柱的恶性肿瘤。
2. 2. This is the first time we've encountered such a malignant tumor of the spinal cord.
   这是我们第一次遇到这样的脊柱恶性肿瘤。
3. 3. The treatment for this malignant tumor of the spinal cord is still under investigation.
   治疗这种脊柱恶性肿瘤的方法仍在研究中。