Table 1.

Epidemiology of TETs (thymic epithelial tumors).

Heterogeneous Group of Malignancies
Incidence: 1.7/1 million/year
Most common tumor type located in the anterior mediastinum
Any age (mean age at diagnosis 50–60 years), both genders (slight male prevalence)
No risk factors identified
Common association with autoimmune diseases (myasthenia gravis in 30% of the cases)
Prognosis: 5-year survival ~80% for thymoma, ~30% for thymic carcinoma