Intravascular large B-cell lymphoma (IVLBCL) is a rare form of non-Hodgkin’s that selectively involves the lumina vessels, and may present as ischemic stroke. A 62-year-old man presented with progressive aphasia, dementia, seizure stroke-like symptom. Brain magnetic resonance imaging revealed dynamic fluid attenuated inversion recovery lesions multiple punctate microbleeds in bilateral subcorti...