247152.fig.001a
(a)
247152.fig.001b
(b)
247152.fig.001c
(c)
Figure 1: Contrast-enhanced T1-weighted MR (upper) and 18F-FDG PET (lower) images in PCNSL patients with typical MR findings. MR images show a homogenous enhanced lesion in the left basal ganglia (a), the right frontal white matter (b), and the corpus callosum (c). 18F-FDG PET images show a strong 18F-FDG uptake in the lesions.