<prompt> Schmorls nodule is a radiographic finding seen in:SpondylolithiasisAnkylosing spondylitisInterveebral disc prolapseFracture of transverse process veebra  <response>: Schmorls node SN is the herniation of nucleus pulposus NP through the cailaginous and bony end plate into the body of the adjacent veebra. They appear as shallow concavities along the superior and inferior endplates of veebral bodies and are often detected incidentally. Ref: Spinal Imaging: Diagnostic Imaging of the Spine and Spinal Cord, edited by Johan W. M. van Goethem, Page 351. 