Asian variant intravascular large B-cell lymphoma with highly suspected central nervous system involvement: A case report

Figure 1 Axial T2-FLAIR brain magnetic resonance imaging reveals pachymeningeal enhancement in both frontoparietal convexities.

Figure 2 An ¹⁸F-fluorodeoxyglucose (FDG) positron emission tomography with computed tomography scan shows high FDG uptake in the right ethmoid sinus, liver, and both adrenal glands.

Figure 3 Haematoxylin and eosin stained section of the biopsy specimen demonstrates atypical large lymphoid cells with prominent nucleoli in the blood vessel. A: Haematoxylin and eosin (H&E) (×100); B: H&E (×400); C: Immunohistochemical staining: CD20 (×400); D: BCL2 (×400); E: BCL6 (×400); F: IRF4/MUM1 (×400).