In addition, vasculitis such as IgA vasculitis is demonstrated to appear more commonly in FMF patients than in the general population, and its occurrence is thought to be impacted by the presence of MEFV gene mutations.21 Studies from the Middle East and other countries have revealed the presence of IgA vasculitis in 3.6–7% of patients with FMF.21,22 In our study, it was observed in 20% of patients; this high percentage could be attributed to a recruitment bias in our unit receiving severe IgA vasculitis. This evidence concerns the gene MEFV and Henoch-Schoenlein purpura.