A 46-year-old woman presents three days after tonsillectomy with severe throat pain and dysphagia. Vital signs: BP 128/82, HR 92, RR 16, Temp 37.2°C, SpO2 98%. Physical examination reveals absent gag reflex bilaterally and diminished taste sensation over the posterior one-third of the tongue. Laryngoscopy shows mild edema without abscess formation. She denies hoarseness or vocal cord dysfunction. Which nerve was most likely injured during surgery?
- A)Glossopharyngeal nerveGABARITO
- B)Vagus nerve
- C)Lingual nerve
- D)Hypoglossal nerve
- E)Accessory nerve
Explicação
The glossopharyngeal nerve lies close to the palatine tonsil and carries sensation and taste from the posterior one third of the tongue as well as the afferent limb of the gag reflex. These findings localize well to CN IX. Ver explicação completa e trilha adaptativa →