List of abbreviations
CLIPPERS(chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids), CNS(central nervous system), ANA (antinuclear antibody), MRI (Magnetic Resonance Imaging), CT (Computed Tomography), DWI (Diffusion Weighted Imaging), MRA (Magnetic Resonance Angiography), susceptibility-weighted angiography (SWAN), PCNSL (Primary central nervous system lymphomas),