To evaluate the MR images of compressive myelomalacia caused by protrusion of cervical intervertebral discs.
探讨颈椎椎间症所致压迫性脊髓软化症的MR表现和分期。
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It can be congenital, meaning that the person is born with it, or acquired, usually due to degenerative disorders like ankylosing spondylitis, where the bones remodel causing intervertebral discs ossification, and the narrowing of the spinal canal.
它可能是先天性的,也就是说患者出生便有这种情况;或是获得性的,通常原因是退行性疾病,如强直性脊柱炎,导致骨重塑,引起椎间盘骨化,进而造成椎管狭窄。