Primary diffuse large B-cell lymphoma of dura: two cases report and brief review of the literature

Primary diffuse large B-cell lymphoma (PDLBL) of dura is a subtype of central nervous system lymphoma and is rare in clinical practice. The MRI features of PDLBL are still lacking, and this tumor is easily misdiagnosed as other cerebral disorders before operation, such as meningioma. Therefore, the accurate diagnosis of PDLBL is important before treatment. In this study, we reported 2 cases of PDLBL. The 2 cases had similar MR findings including the presence of vasogenic edema, hemorrhage, destruction of the adjacent skull, the antenna-shaped prominence in the inner margin and parenchymal brain invasion with a fuzzy tumor brain interface. These MRI features may help us to make a diagnosis of dural PDLBL.