Relapsing Polychondritis in a Patient with Ankylosing Spondylitis under Two Different Tumor Necrosis Factor Alpha Inhibitors Treatment.

Relapsing polychondritis (RP) is a rare autoimmune disease char-acterized by multi-systemic involvement characterized by recurrent and progressive inflammation of the cartilaginous tissue. Auricular inflammation is a characteristic finding of RP. Anti-tumor necrosis fac-tor alpha (anti-TNF) is a highly effective drug used in the treatment of inflammatory arthritis. There are several case reports showing potential relationship between the RP development and anti-TNF treatment. Here, we present a case of RP in a patient with ankylosing spondylitis under the two different tumor necrosis factor alpha inhibitors therapy.