Basilar Nodule: Symptoms, Causes, and Treatment

A basilar nodule (lingual thyroid nodule) is a small, benign growth at the base of the tongue, near the vallecula. It represents ectopic thyroid tissue or a reactive lymphoid hyperplasia.

Clinical Presentation

• Often asymptomatic, discovered incidentally.
• If enlarged: globus sensation, dysphagia, odynophagia, airway obstruction (rare).
• May cause voice change or cough.

Etiology

Developmental remnant of thyroid descent (foramen cecum) or lymphoid tissue hyperplasia. Not malignant.

Diagnosis

• Flexible laryngoscopy
• Imaging (CT/MRI) to assess extent and rule out thyroid primary
• Thyroid function tests (usually normal)
• Biopsy rarely needed

Management

• Observation for asymptomatic nodules.
• Surgical excision (transoral, laser, or robotic) for symptomatic lesions.
• Thyroid hormone suppression not effective.

Prognosis is excellent; malignancy is exceedingly rare.