Follicular adenoma presenting as lateral aberrant thyroid.

Introduction: True benign thyroid masses very rarely present as a solitary lateral neck mass. Different aetiological mechanisms have been proposed for such masses. Case report: We report a case of thyroid follicular adenoma that presented as a lateral neck mass. Discussion: Ectopic thyroid tissue and metastases from primary thyroid carcinoma should always be considered in the differential diagnosis of lateral neck masses. Complete investigation should include complete blood tests to characterise the orthotopic thyroid gland.