Postthymectomy Myasthenia Gravis: Relationship With Thymoma and Antiacetylcholine Receptor Antibody

We found that patients in whom postthymectomy myasthenia gravis developed showed high titers of antiacetylcholine receptor-binding antibody at the onset of the myasthenia gravis. We suggest that a positive preoperative antiacetylcholine receptor antibody level may be a risk factor for postthymectomy myasthenia gravis.