Table 2.

Summary table for invasive thymoma with intravascular growth.

Etiology	Tumoral cells are thought to invade venous vascular system through the thymic veins and malignant tumoral thrombus grows into the LBSV, SVC and then the RA
Incidence	Invasive thymomas usually infiltrate adjacent organs in the mediastinal pleura, including the lungs, pericardium, great vessels, and heart, and extrathoracic metastases are very uncommon, occurring in only about 5% of cases
Gender ratio	There is no gender ratio for intravascular growth of invasive thymoma
Age predilection	There is no age predilection for intravascular growth of invasive thymoma
Risc factors	Rics factors for intravascular growth of invasive thymoma is unknown.
Treatment	The optimal treatment for invasive thymomas is complete resection, and therefore vascular wall reconstruction is necessary in invasive cases.
Prognosis	excellent long-term survival after extended resections for thymoma
Imaging findings	Ill-defined borders and infiltrative growth into the neighbouring structures. Significant low ADC values on MRI.