title: Congenital absence of a lumbar pedicle presenting as back pain in children.
abstract: Four children with back pain were shown to have a congenital absence of a lumbar pedicle. Computed tomography scanning was the most helpful diagnostic test. A modification of the classification of Tiyaworabun et al. for congenital absence of a pedicle in the cervical spine is suggested.
authors.affiliation: Alfred I. duPont Institute, Wilmington, Delaware.
authors.forename: D W
authors.initials: DW
authors.lastname: Polly
authors.forename: D E
authors.initials: DE
authors.lastname: Mason
mesh_terms: D000293:Adolescent; D001416:Back Pain / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D002648:Child; D003937:Diagnosis, Differential; D004576:Electromyography; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000002:abnormalities* / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging; D008297:Male; D009460:Neurologic Examination; D014057:Tomography, X-Ray Computed