title: Differential diagnosis and radiological work-up in bilateral lateral atlantoaxial offset.
abstract: Bilateral override of the atlas on the axis is generally attributed to a traumatic disruption of the atlas ring. Few other conditions have been described previously in association with this finding. The morphologic features to be considered and the differential diagnosis are discussed, stressing the diagnostic value of the lateral view, and of both conventional and computed tomography.
mesh_terms: D000328:Adult; D000368:Aged; D001268:Atlanto-Axial Joint / Q000002:abnormalities / Q000000981:diagnostic imaging* / Q000293:injuries; D003937:Diagnosis, Differential; D005260:Female; D050723:Fractures, Bone / Q000000981:diagnostic imaging; D006801:Humans; D004204:Joint Dislocations / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011859:Radiography