Psoriatic arthritis (PsA) is a chronic progressive disease in which bone erosion is recognized as a hallmark destructive feature. Its exact prevalence is unknown, but estimates vary from 0.3 % to 1 % of the population. Previous studies have demonstrated that approximately 47 % of patients exhibit erosions within 2 years of diagnosis [1]. 87.6 % of PsA patients develop bone erosions within a decade of initial diagnosis, with a mean onset time of 6.8 ± 6.1 years [2]. The presence of bone erosions …