Introduction: Thymomas, benign or malignant, may be associated with autoimmune diseases. They are classically associated with myasthenia gravis, neuromyotonia, or pure red cell aplasia.
Case report: We here report, to the best of our knowledge, the first description of an association between thymoma and Reynolds syndrome (systemic sclerosis associated with primary biliary cirrhosis) in an 80-year-old woman.
Conclusion: The suspected pathogenesis of this association could be a thymus escape of auto-reactive T lymphocytes and the consecutive development of an auto-immune disorder.
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