A Brainstem‐Dominant Acute Disseminated Encephalomyelitis Presenting With Magnetic Resonance Imaging Findings Similar to Those of Chronic Lymphocytic Inflammation With Pontine Perivascular Enhancement Responsive to Steroid Syndrome

Acute disseminated encephalomyelitis can present with brainstem symptoms and bilateral symmetrical lesions in the basal ganglia. In such cases, differentiation from chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids syndrome is necessary.