What is the prevalence of thymic abnormalities in myasthenia gravis (MG)?

Updated: Aug 27, 2018
  • Author: Abbas Jowkar, MD; Chief Editor: Nicholas Lorenzo, MD, MHA, CPE  more...
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Answer

Thymic abnormalities are common: Of patients with MG, 75% have thymic disease, 85% have thymic hyperplasia, and 10–15% have thymoma. Extrathymic tumors may include small cell lung cancer and Hodgkin disease. [25, 26] Hyperthyroidism is present in 3–8% of patients with MG and has a particular association with ocular MG.


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