Delayed presentation of invasive thymoma in myasthenia gravis: a case report.

Current practice favors imaging of people with myasthenia gravis (MG) at the time of diagnosis to look for evidence of thymoma or thymic hyperplasia. However, there is no evidence to allow any recommendation about repeat imaging in people with normal scans at presentation, and there is little evidence to recommend surgical exploration in such cases. We present a patient with a delayed presentation of invasive thymoma 11 years after a normal thoracic computerized tomography.