Differential Diagnosis for Unilateral Throat Pain when Swallowing
- Single Most Likely Diagnosis
- Acute tonsillitis: This condition is characterized by inflammation of the tonsils, often due to bacterial or viral infection. The pain is typically unilateral and worsens with swallowing, making it a prime candidate for the described symptoms.
- Other Likely Diagnoses
- Peritonsillar abscess: An accumulation of pus behind the tonsils, which can cause severe, unilateral throat pain that worsens with swallowing.
- Pharyngitis: Inflammation of the pharynx, which can be caused by viral or bacterial infections, leading to throat pain, especially when swallowing.
- Dental issues (e.g., abscess, impacted tooth): Referred pain from dental problems can sometimes be felt in the throat, particularly on one side, and may worsen with swallowing due to the proximity of the throat and jaw.
- Do Not Miss Diagnoses
- Epiglottitis: Although less common, this condition involves inflammation of the epiglottis and can lead to severe respiratory distress. It requires immediate medical attention.
- Carotid artery dissection: A tear in the carotid artery can cause neck and throat pain, among other symptoms. It's a medical emergency due to the risk of stroke.
- Oropharyngeal cancer: Though rare, cancer in the throat area can cause unilateral pain, especially when swallowing. Early detection is crucial for effective treatment.
- Rare Diagnoses
- Eagle syndrome: A condition where an elongated styloid process or calcified stylohyoid ligament causes pain in the throat, which can be exacerbated by swallowing.
- Thyroiditis: Inflammation of the thyroid gland, which can cause throat pain, though it's less commonly associated with swallowing.
- Esophageal spasm or esophagitis: Conditions affecting the esophagus can cause pain during swallowing, though they are less likely to cause strictly unilateral throat pain.