Palindromic rheumatism: Evidence of four subtypes of palindromic-like arthritis based in either MEFV or rheumatoid factor/ACPA status

•Four subtypes of palindromic-like (PL) arthritis were identified according to MEFV mutations or autoantibodies.•MEFV mutations identify patients with PL arthritis with short flares and response to colchicine.•MEFV mutations-associated PL arthritis can occur in patients with established RA or PsA.•Double negative PL arthritis includes autoinflammatory, autoimmune or infectious diseases.