[CREMA]Combination of R-M Followed by R-A in Elderly Patients With Primary CNS Lymphoma

500 mg/m2 + 5%DW 500 mL IVF Begin with 50 mg/hr (increase by 50 mg/hr per 30 min until 400 mg/hr is reached)

500 mg/m2 + 5%DW 200 mL IV over 15 minutes 3000 mg/m2 + 5%DW 500 mL IVF over 3 hrs Concurrent hydration and subsequent leucovorin rescue is mandatory

3000 mg/m2 + 5%DW 200 mL IVF over 2 hrs steroid eye drop 0.1%, 2 drops q 6hrs, on days 1-9