# Severe Influenza B-associated Encephalopathy With Vocal Cord Paralysis in an Otherwise Healthy Adolescent: A Case Report

**Authors:** Mahmoud Helaly, Mahmoud Ali, Mohamad Aly

PMC · DOI: 10.7759/cureus.86916 · Cureus · 2025-06-28

## TL;DR

A healthy teenager developed severe brain and vocal cord issues from Influenza B, requiring intensive care and recovery.

## Contribution

Demonstrates rare severe neurological complications from Influenza B in a healthy adolescent.

## Key findings

- Influenza B can cause encephalopathy and vocal cord paralysis in healthy individuals.
- Supportive care and rehabilitation led to gradual recovery in the patient.
- Highlights the need for awareness of rare complications during influenza outbreaks.

## Abstract

Influenza B is generally considered a mild respiratory virus, but this case demonstrates its potential for severe neurological complications in otherwise healthy individuals. We describe a 17-year-old male patient who developed encephalopathy and bilateral vocal cord paralysis, requiring intensive care and tracheostomy. The patient gradually recovered following supportive care and multidisciplinary rehabilitation. This report highlights the importance of recognizing rare complications during influenza outbreaks.

## Linked entities

- **Diseases:** encephalopathy (MONDO:0005560)

## Full-text entities

- **Diseases:** Encephalopathy (MESH:D001927), Vocal Cord Paralysis (MESH:D014826), neurological complications (MESH:D002493), Influenza B (MESH:D007251)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

_Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/PMC12302333/full.md

## Figures

4 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12302333/full.md

## References

8 references — full list in the complete paper: https://tomesphere.com/paper/PMC12302333/full.md

---
Source: https://tomesphere.com/paper/PMC12302333