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 Indian J Med Microbiol  
 

Figure 18 (A-D): Ankylosing Spondylitis: Reformatted Sagittal CT (A and B) Axial CT (C) and coronal pelvis CT (D) in a 34 year old HLA-B 27 positive male reveals atlanto-axial dislocation, ligament calcification (black arrow), fusion of zygoapophyseal joints (white arrow) and secondary atlanto-ocipital assimilation with bilateral sacroiliac and hip joint ankylosis

Figure 18 (A-D): <i>Ankylosing Spondylitis</i>: Reformatted Sagittal CT (A and B) Axial CT (C) and coronal pelvis CT (D) in a 34 year old HLA-B 27 positive male reveals atlanto-axial dislocation, ligament calcification (black arrow), fusion of zygoapophyseal joints (white arrow) and secondary atlanto-ocipital assimilation with bilateral sacroiliac and hip joint ankylosis