Ipilimumab treatment associated with myasthenic crises and unfavorable disease course.

Ipilimumab, a monoclonal antibody targeting the cytotoxic T lymphocyte antigen-4 is a treatment option for metastatic melanoma. This receptor serves as an inhibitor receptor on T lymphocytes and blockage of these results predisposition to autoimmune diseases. The patients with autoimmune disorders were excluded in clinical trials and there is no sufficient data of the treatment on these patients who already have an autoimmune disorder. Here, we report a case of myasthenia gravis who was treated with ipilimumab and we presented the long-term prognosis of the patient after treatment.