This case is remarkable for its special pattern of an acute relapsing MAS. The exact mechanism underlying the relapsing pattern of the disease is not well understood. However, our patient fully recovered following long-term treatment with steroids, mycophenolate mofetil and cyclosporine. We cannot evaluate the exact contribution of each medication to the patient's positive response. Nevertheless, we believe that the prolonged use of cyclosporine treatment played a major role in her recovery.