Teaching NeuroImages: Acute necrotizing encephalopathy during novel influenza A (H1N1) virus infection

Since the outbreak of novel influenza A (H1N1) in 2009, various neurologic complications have been cited.[1][1] A 2-month-old girl died of a rapidly progressive encephalopathy after influenza infection. MRI, performed after 12 hours from the onset of symptoms, showed bilateral and symmetric lesions