A 5-year-old girl presents with difficulty breathing. On examination, of the oral cavity a 3 cm mass is found in the midline on the posterior aspect of the tongue. The most likely diagnosis is:
Lingual tonsil
Lingual thyroid
Foreign body stuck to the tongue
Dermoid
An ectopic thyroid gland can be located anywhere from the base of the tongue to the mediastinum. It often results in the failure of descent resulting in either a linginal thyroid or ectopic thyroid in the midline of the neck. The so called lateral aberrant thyroid is usually a metastasis from papillary carcinoma of the thyroid.Angioneurotic edema is an acute allergic reaction, which causes a sudden swelling of the whole tongue with airway obstruction.
Neck