Total aplasia of the posterior arch of the atlas.
D000328:Adult; D001270:Cervical Atlas / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D010384:Pelvic Bones / Q000293:injuries; D014057:Tomography, X-Ray Computed; D014717:Vertigo / Q000175:diagnosis