Ultrasound evaluation of neck masses in children.

Neck masses in children are a frequent occurrence and in some instances create a diagnostic dilemma for the clinician. The authors' two-year experience using ultrasonography in the evaluation of 34 children with neck masses is reviewed. Twenty-two patients had lesions arising outside the thyroid gland; 12 lesions arose from the thyroid gland. Ultrasonography proved to be an accurate imaging modality for localizing the mass and demonstrating its relationship to the thyroid gland, trachea, and major neck vessels. The borders and extent of the lesions were well outlined, as well as their internal consistency. Based on this review, the authors recommend that ultrasonography be the first screening procedure in pediatric patients who present with perplexing neck masses.