<prompt> Bamboo spine is seen in -Ankylosing spondylitisRAPagets diseaseFibrous dysplasia  <response>: Radiological features of Ankylosis spondylitis are : Sacroiliitis Enthesopathy Romanus lesions Bamboo spine Rugger Jersy spine Interveebral disc calcification Dagger sign Trolley track sign Squarring of veebrae. 