case_images: PMC3589859_01
case_images: CT spine showing, sagittal (a) and axial (b-d) views of the bone defect in the anterior arch of C1
case_images: JETS-6-47-g001.jpg
case_images: PMC3589859_01_JETS-6-47-g001.jpg
case_images: F1
case_images: A cervical computed tomography (CT) scan, not only demonstrated an anterior small defect of the arch on its left side, with tiny bony fragments in the middle of the defect, but also a posterior rim defect at the level of the C1 tuberculum [Figure 1].
case_images: Spinal T2 Weighted MR Imaging: Sagittal (a) and axial (b) views do not show any evidence of hyperintensity suggestive of a recent trauma, concurrent with the C1 defect
case_images: JETS-6-47-g002.jpg
case_images: PMC3589859_01_JETS-6-47-g002.jpg
case_images: F2
case_images: A non-traumatic origin was sustained by cervical magnetic resonance imaging (MRI), which excluded the presence of blood and edema near the bony defect on T2 Weighted imaging [Figure 2].
case_images: Flexion (a) and extension (b) cervical X-rays do not show any evidence of abnormal movements
case_images: JETS-6-47-g003.jpg
case_images: PMC3589859_01_JETS-6-47-g003.jpg
case_images: F3
case_images: Furthermore, a flexion-extension cervical X-ray [Figure 3] definitely excluded the presence of abnormal movements.