Clinical History:
A 19-year-old male presented with bilateral upper limb and lower limb weakness for 1 year. Physical examination showed wasting of hand muscles and features of myelopathic hands. Dynamic MRI was performed (5 images – upper row: T2 weighted sagittal images of cervical spine in extension, flexion and neutral neck positions; lower row : axial T2 weighted axial images of cervical spine in flexion and neutral neck positions.)