title: The variant lumbar pedicle.
abstract: Three cases of aplastic and/or hypoplastic lumbar pedicle are presented and discussed. The importance of plain films, especially the 45 degrees posterior oblique, for making the diagnosis is emphasized. The incidence and embryology of abnormalities of the pedicle are reviewed and the radiological features used to differentiate these congenital abnormalities from neoplasm and trauma are described.
mesh_terms: D000328:Adult; D000368:Aged; D001510:Bed Rest; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000002:abnormalities / Q000000981:diagnostic imaging* / Q000196:embryology; D008297:Male; D008875:Middle Aged; D026741:Physical Therapy Modalities; D013124:Spinal Injuries / Q000000981:diagnostic imaging; D013125:Spinal Neoplasms / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed