[Malignant brain tumors after radiation - glioblastomas after operation and radiation of meningiomas - 2 case reports].

The authors report 2 cases of glioblastomas subsequent to radiation of intracranial tumors. In the first case, a 47-year old man received radiation therapy after subtotal removal of a temporobasal meningioma. In the second case, a 52-year old women underwent operation of an atypical falcine meningioma and was irradiated postoperatively.