Congenital absence of a cervical vertebral pedicle.
D000015:Abnormalities, Multiple / Q000000981:diagnostic imaging; D000293:Adolescent; D000328:Adult; D000368:Aged; D002574:Cervical Vertebrae / Q000002:abnormalities* / Q000000981:diagnostic imaging; D000013:Congenital Abnormalities / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D009192:Myelography; D009455:Neurofibroma / Q000175:diagnosis; D013120:Spinal Cord Neoplasms / Q000175:diagnosis; D013124:Spinal Injuries / Q000175:diagnosis