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Fig. 2 | BMC Veterinary Research

Fig. 2

From: Degenerative changes of the canine cervical spine after discectomy procedures, an in vivo study

Fig. 2

Sagittal T2 weighted MR images of the lower cervical spine. Right side of each slide is dorsal (D) a Red arrows point to the intervertebral discs between the vertebral bodies (VB) which are ventral to the spinal canal (SC). Healthy control discs at C6/C7 demonstrate a bright hyperintense, homogenous NP. The hyperintensity indicates normal NP tissue hydration. There is a clear border to the hypointense AF without loss of disc height. The endplates are hypointense. In contrast, the discectomy segment C5/C6 shows a black disc sign. There is complete loss of nuclear hyperintensity. The disc space is collapsed. The endplates (yellow arrow) are hyperintense which is indicative of type II Modic degenerative changes. b Different specimen. Yellow arrows point to disc space. Red arrow points to extruded disc at the discectomy segment. There is no significant spinal cord compression present. c Lateral view to the neuroforamen (marked by yellow ellipse). The C5/C6 discectomy segment shows a narrower foramen compared to the healthy C6/C7 segment. However, the nerve root (hypointense structure within foramen) appears not to be compressed at the discectomy segment

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