Disseminated intravascular large‐cell lymphoma with initial presentation mimicking Guillain–Barré syndrome

We report a patient with intravascular large B‐cell lymphoma who initially presented with acute ascending weakness and sensory changes. Electrodiagnostic testing and cerebral spinal fluid (CSF) studies were initially suggestive of a demyelinating polyneuropathy. Further clinical evaluation and testing were consistent with mononeuropathy multiplex. Autopsy revealed disseminated intravascular large‐cell lymphoma. Intravascular large‐cell lymphoma should be considered in the differential diagnosis of a rapidly evolving neuropathy associated with other organ involvement. Muscle Nerve, 2010