Fracture of odontoid process with anterior displacement. Erosion of the odontoid process with periodontoid soft tissue mass. It is isointense (to spinal cord) on T1, heterogeneously hyperintense on T2/STIR and heterogeneously enhanced post-contrast.
External compression of the soft tissue mass and anterior displacement of the fractured odontoid process results in spinal canal narrowing at this level causing spinal cord myelopathy (high signal intensity within spinal cord on STIR sequence)
Loss of normal signal void on T2 sequence within the left vertebral artery from medulla oblongata (V4 segment) extending down into the left foramen transversarium(V2 segment).
Minimal C3/C4, C4/C5, C5/C6 and C6/C7 disc osteophyte complexes.