Fig. 2From: Histological verification of the treatment effect of tirabrutinib for relapsed/refractory primary central nervous system lymphomaChanges of radiological appearance of the lesion on magnetic resonance imaging before and after tirabrutinib treatment are shown. The lesion was initially enhanced by a contrast agent in the left cerebellum before tirabrutinib treatment (a), but the enhanced lesion disappeared one month after tirabrutinib treatment (b)Back to article page