Fig. 2
From: Cervical instability in Klippel-Feil syndrome: case report and review of the literature
Preoperative CT of the cervical spine without contrast reveals segmentation abnormalities and fusion of multiple cervical and thoracic vertebrae, including fusion of C1–C2 (dens), C2–C3, C5–C6, C6–C7, C7–T1, and T1–T2