Differential Diagnosis for Deviation of Uvula to the Right

• Single Most Likely Diagnosis
  • Vocal Cord Paralysis (Left): This condition is the most likely cause of uvular deviation due to the imbalance in muscle strength between the two sides of the larynx and pharynx, leading to the deviation of the uvula towards the unaffected side.
• Other Likely Diagnoses
  • Peritonsillar Abscess (Left): An abscess near the tonsils can cause swelling and push the uvula to the opposite side.
  • Tonsillar Hypertrophy (Left): Enlarged tonsils on one side can also cause the uvula to deviate to the opposite side due to the increased size and potential inflammation.
  • Pharyngeal or Oropharyngeal Tumors (Left): Tumors in the throat area can cause mechanical obstruction or nerve damage leading to uvular deviation.
• Do Not Miss Diagnoses
  • Lateral Medullary Syndrome (Wallenberg's Syndrome): Although less common, this stroke syndrome can cause paralysis of the soft palate and uvula on the affected side, leading to deviation. Missing this diagnosis could have significant implications for patient outcomes.
  • Cranial Nerve (CN) IX or X Palsy: Damage to these nerves can affect the muscles of the pharynx and larynx, leading to uvular deviation. Early diagnosis is crucial for appropriate management.
• Rare Diagnoses
  • Pharyngeal or Laryngeal Trauma: Direct injury to the pharynx or larynx can cause deviation of the uvula, though this would typically be associated with a clear history of trauma.
  • Congenital Anomalies: Certain congenital conditions affecting the development of the pharynx or larynx could potentially cause uvular deviation, though these would likely be identified earlier in life.