All are true about the effect of thymectomy, EXCEPT:
Thymectomy results in the resolution of pure red cell aplasia in ~30% of patients Hypogammaglobulinemia usually responds to thymectomy Patients with myasthenia gravis have a ove thymoma is present in 10-15% of patients The course of myasthenia gravis is not significantly different in patients with or without thymoma