Mediastinal metastases from a primary immature teratoma of the CNS

A rare case of brain metastatic of primary mediastinal yolk sac tumor

“…Prognosis of Mediastinal yolk sac from the international germ cell cancer collaborative group showed progression-free survival for YST in 5 years, only 35%. It would be below 50% if there were metastatic processes outside the mediastinum [ 3 , 23 ]. Patients with metastatic brain process got 24 months mean survival [22] .…”