Thiotepa Followed by Peripheral Stem Cell or Bone Marrow Transplant in Treating Patients With Malignant Glioma

RATIONALE: Drugs used in chemotherapy work in different ways to stop tumor cells from dividing so they stop growing or die. Giving chemotherapy with peripheral stem cell or bone marrow transplant may allow the doctor to give higher doses of chemotherapy drugs and kill more tumor cells. PURPOSE: This phase II trial is studying how well thiotepa followed by peripheral stem cell or bone marrow transplant works in treating patients with malignant glioma.