Fig. 1From: Histological verification of the treatment effect of tirabrutinib for relapsed/refractory primary central nervous system lymphomaHistological findings of brain biopsied samples of the initial lesion and that after tirabrutinib treatment are shown. The initial lesion was diagnosed as diffuse large B cell lymphoma (DLBCL), as shown in hematoxylin and eosin stain (a). Histological appearance of an autopsied specimen of the lesion after tirabrutinib treatment showed no evidence of viable cells (Lower-right: Overview of the investigated tissue) (b)Back to article page