noun (plural thymomas or thymomata /-mətə/)Medicine
A rare, usually benign tumor arising from thymus tissue and sometimes associated with myasthenia gravis.
- Rare cases of thymomas, thymic carcinomas, and lymphomas have been reported.
- About 45% of thymomas are associated with myasthenia gravis.
- At this point the differential diagnosis included thymoma, teratoma and lymphoma.
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