Fig. 1From: May we routinely spare hippocampal region in primary central nervous system lymphoma during whole brain radiotherapy?Contouring of hippocampus with 5-, 10-, and 15-mm expansion envelopes and lesion. (Yellow lines = hippocampus – Green lines = 5 mm envelope – Pink lines = 10 mm envelope – Blue lines = 15 mm envelope – Red lines = lesion)Back to article page