A swelling that opens on the surface of the neck is called a thyroglossal _________.

Question

Quizplus · Accepted Answer

A thyroglossal fistula is a swelling that opens on the surface of the neck. It is caused by a failure of the thyroglossal duct to close during embryonic development. The thyroglossal duct is a tube that connects the thyroid gland to the base of the tongue. In most people, the thyroglossal duct closes before birth. However, in some people, the duct remains open, creating a thyroglossal fistula.

A Swelling That Opens on the Surface of the Neck