<prompt> Syndesmophytes are seen in -ASRAOAAll  <response>: Syndesmophytes Syndesmophytes are thin, slender vertical radiodense spicules bridging the vertebral bodies, giving the spine bamboo appearance. They are actually ossification of outer fibres of annulus fibrosus.Syndesmophytes are seen in :Ankylosing spondylitisPsoriatic arthritisReiters diseaseArthritis associated with Inflammatory bowel disease 