Summary

A 42-year-old Caucasian woman with SAPHO syndrome (synovitis, acne, pustulosis, hyperostosis and osteitis) refractory to non-steroidal anti-inflammatory drugs, sulfasalzine, methotrexate, bisphosphonates and steroids was successfully treated with antitumour necrosis factor therapy (infliximab). This case was a diagnostic challenge leading to extensive investigations for infection and malignancy and delayed diagnosis for several years. We report the significant improvement in clinical, radiological and laboratory markers of disease activity on infliximab and the steroid sparing effect of such therapy.