congenital
Thyroglossal cyst
A thyroglossal cyst or thyroglossal duct cyst is a fibrous cyst that forms from a persistent thyroglossal duct. Thyroglossal cysts can be defined as an irregular neck mass or a lump which develops from cells and left over after the formation of the gland during developmental stages.
Underlined words are explained — tap any of them.
More in Thyroid & Hormones
HypothyroidismHyperthyroidismGoitreHashimoto's thyroiditisGraves' diseaseThyroid cancerCushing's syndromeAddison's diseaseAcromegalyHyperparathyroidismDiabetes insipidusPheochromocytoma
See all of Thyroid & Hormones →Plain-language summary adapted from Wikipedia. Not medical advice.