Throat Thickening (Pharyngeal Thickening): Causes and Evaluation

A sensation of thickening or fullness in the back of the throat (globus pharyngeus) has many potential causes, ranging from benign to serious.

Common Causes

• Laryngopharyngeal reflux (LPR): "Silent reflux" irritates posterior larynx/pharynx without heartburn. Postnasal drip, throat clearing, hoarseness.
• Chronic postnasal drip: Allergic/non-allergic rhinitis, sinusitis → mucus accumulation.
• Hypertrophic tonsils/adenoids: Chronic inflammation or lymphoid hyperplasia.
• Muscle tension dysphonia / cricopharyngeal spasm: Functional tightening of throat musculature, often stress-related.
• Thyroid enlargement (goiter): Anterior pressure causing posterior sensation.
• Anxiety/globus sensation: No structural abnormality; "lump in throat" from heightened somatic awareness.

Concerning Causes Requiring Exclusion

• Neoplasms: Oropharyngeal, hypopharyngeal, laryngeal, or thyroid cancer; base-of-tongue lymphoma.
• Zenker's diverticulum: Pharyngeal pouch causing regurgitation, aspiration.
• Cervical osteophytes: Anterior spinal spurs impinging on esophagus/pharynx.
• Autoimmune/granulomatous: Sarcoidosis, Wegener's, IgG4-related disease.

Diagnostic Approach

1. History: timing, triggers, associated symptoms (dysphagia, odynophagia, weight loss, voice change, otalgia).
2. Physical: neck palpation, oropharynx exam, cranial nerves.
3. Flexible laryngoscopy (office): visualizes larynx, hypopharynx, vocal cords.
4. Imaging: CT neck with contrast, MRI if soft tissue detail needed.
5. Esophagoscopy / barium swallow if esophageal origin suspected.
6. Biopsy if mass/lesion identified.

Most globus sensations are benign (LPR, anxiety, postnasal drip), but persistent or progressive symptoms mandate ENT evaluation to exclude malignancy.