Thymus Cancer

Thymoma and thymic carcinoma, also called thymic epithelial tumors (TETs), are rare cancers that form in the thymus gland. Thymus cancer makes up less than 1.5% of all cancers. It occurs more often in middle-aged or older adults but can occur at any age. Learn more about thymus cancer in adults and children, including symptoms and how it is diagnosed and treated.