What causes thymoma?

Updated: Dec 03, 2018
  • Author: Kendrix J Evans, MD, MS; Chief Editor: John Geibel, MD, MSc, DSc, AGAF  more...
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The etiology of thymomas has not been elucidated; however, these lesions have been associated with various systemic syndromes. As many as 30-40% of patients who have a thymoma experience symptoms suggestive of MG. An additional 5% of patients who have a thymoma have other systemic syndromes, including red cell aplasia, dermatomyositis, systemic lupus erythematosus (SLE), Cushing syndrome, and syndrome of inappropriate antidiuretic hormone secretion (SIADH).

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