“…Four radiographic different types of associated spinal lesions have been described. Spondylodiskitis with vertebral sclerosis and sometimes also syndesmophytes or paravertebral ossifications [12,13,16,39,40,44], AS-like lesions [9, 12, 14, 35-37, 42, 46], parasyndesmophytes or pronounced paravertebral ossifications resembling those of "diffuse idiopathic skeletal hyperostosis" (DISH) [3,10,12,13,28,29,36,42,44], and diffuse metastasis-like vertebral sclerosis [22]. The present study confirmed these associations within the different forms of seronegative arthritides.…”