Fig. 2

Imaging analysis before and after the treatment of the central nervous system lymphoma. a, b. Gadolinium-enhanced magnetic resonance imaging (MRI) before and after the initial treatment of the patient’s central nervous system lymphoma. A 16 × 12 mm lobulated tumor mass in the hypothalamus that extends to the pituitary stalk and the right temporal lobe was detected as a low intensity mass in T2-weighted imaging, a faint high intensity mass in diffusion-weighted imaging, and fluid attenuated inversion recovery imaging (a). The mass was no longer detected after the treatment (b). T1, T1-weighted imaging; T2, T2-weighted imaging; DWI, diffusion-weighted imaging; FLAIR, fluid attenuated inversion recovery imaging; Sag, sagittal plane; Cor, coronal plane