Concurrent lingual thyroid and undescended thyroglossal duct thyroid without orthotopic thyroid gland.

Thyroglossal duct cyst and lingual thyroid are two common anomalies of thyroid gland development. Each may occur without the thyroid gland in the normal anatomic position, although the association of these three anomalies together is rare. Ectopic thyroid may function abnormally, and this determination can help guide surgical management. Therefore, early evaluation by an endocrinologist is an important part of the therapeutic approach. We report on the presentation and management of a 14-year-old girl with multiple foci of thyroid ectopia, absent orthotopic thyroid gland, and hypothyroidism.