Medicine C.N.S 9224ff69 Thymoma associated with A Myasthenia gravis B Polycythemia C Ectopic ACTH D Polyaentis nodosa High-Yield Explanation * Thymus is abnormal in 75% patients with MG. 65% - hyperplastic, 10%- thymic tumours or thymomas Ref Harrison20th edition pg 2345