Visual Disturbance and Elevated Glutamic Acid Decarboxylase Antibody Levels as Manifestations of Central Nervous System Lymphoma.

Various neurologic manifestations are observed in the course of hematologic malignancies. Clinical neurologic symptoms and manifestations of malignancies may result from the malignancy itself, inflammatory responses, or paraneoplastic syndromes. Therefore, differential diagnosis on the basis of clinical presentation is challenging. This is the first study to report a patient with central nervous system lymphoma and elevated glutamic acid decarboxylase antibody levels who presented with uveitis masquerade syndrome (UMS), followed by progressive consciousness change, mimicking autoimmune encephalitis.