A case of invasive thymoma with myasthenia gravis and pure red cell aplasia

: The patient was a 42-year-old man whose main complaints were ptosis, diplopia and muscle weakness. Chest X-ray film revealed a right hilar mass and chest CT showed a solid mass at right anterior superior mediastinum. Laboratory studies revealed myasthenia gravis (MG) on EMG and pure red cell aplasia (PRCA) on hematology. An extended thymectomy, including the thymoma, was performed. Thrombocytopenia appeared postoperatively, but it improved when a platelet transfusion was given. Steroid was administered for postoperative adjuvant therapy, and the MG and PRCA were alleviated. This rare case of simultaneous MG and PRCA as complications of a thymoma is reported.