Fig. 2

T2-weighted magnetic resonance imaging (MRI) illustrate the three types of spinal cord morphology based on the spinal cord shape classification system (SCSCS). Type I, with a symmetrical spinal cord shape and visible cerebrospinal fluid (CSF) between the spinal cord and osseous structures; Type II, with a symmetrical spinal cord shape but no visible CSF between the spinal cord and osseous structures; and Type III, where the spinal cord is deformed against the apical concave pedicle/vertebral body, with no CSF between the spinal cord and the osseous structures