Fig. 3From: HDMTX-based induction therapy followed by consolidation with conventional systemic chemotherapy and intraventricular therapy (modified Bonn protocol) in primary CNS lymphoma: a monocentric retrospective analysisOverall survival according to age and treatment period (group A: < 65 ys 2005–2008 received liposomal Ara C i.th.; group B: < 65 ys 2009–2013 received i.c.v. therapy via Ommaya reservoir (25/26 patients); group C: ≥ 65 ys 2005–2008 received liposomal Ara C i.th; group D: ≥ 65 ys 2009–2013 received no i.th. therapy (27/35 patients)Back to article page