Congenital absence of a pedicle in the cervical spine.
D000328:Adult; D002574:Cervical Vertebrae / Q000002:abnormalities / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D009192:Myelography; D010178:Pancoast Syndrome / Q000000981:diagnostic imaging; D013125:Spinal Neoplasms / Q000000981:diagnostic imaging; D014054:Tomography; D014102:Torsion Abnormality; D014711:Vertebral Artery