Headache in a patient with influenza

Area of Science:

• Neurology
• Infectious Diseases
• Critical Care Medicine

Background:

• Influenza is a common respiratory illness with known complications.
• Rarely, influenza can lead to severe neurological sequelae.

Observation:

• A previously healthy adult presented with symptoms indicative of influenza.
• The patient subsequently developed cerebral edema and tonsillar herniation.

Findings:

• The patient's severe neurological complications were directly attributed to Influenza B virus infection.
• This case highlights a rare but critical presentation of influenza.

Implications:

• Emergency department providers should maintain a high index of suspicion for severe influenza complications, even with atypical presentations.
• Prompt recognition and management are crucial for potentially fatal outcomes associated with influenza-induced neurological events.