Which imaging studies are performed in the evaluation of myasthenia gravis (MG)?

Updated: Aug 27, 2018
  • Author: Abbas A Jowkar, MBBS; Chief Editor: Nicholas Lorenzo, MD, CPE, MHCM, FAAPL  more...
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Other studies are as follows:

  • Plain chest radiographs may identify a thymoma as an anterior mediastinal mass

  • Chest computed tomography is important to identify or rule out thymoma or thymic enlargement in all cases of MG

  • In strictly ocular MG, magnetic resonance imaging of the brain and orbit is helpful to evaluate for mass lesions compressing the cranial nerves or a brainstem lesion that may masquerade as ocular MG

  • Electrodiagnostic studies (repetitive nerve stimulation and single-fiber electromyography)

See Workup for more detail.

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