Thyroglossal cyst

Jump to: navigation, search
Thyroglossal cyst
Thyroglossal duct cyst.jpg

WikiDoc Resources for Thyroglossal cyst


Most recent articles on Thyroglossal cyst

Most cited articles on Thyroglossal cyst

Review articles on Thyroglossal cyst

Articles on Thyroglossal cyst in N Eng J Med, Lancet, BMJ


Powerpoint slides on Thyroglossal cyst

Images of Thyroglossal cyst

Photos of Thyroglossal cyst

Podcasts & MP3s on Thyroglossal cyst

Videos on Thyroglossal cyst

Evidence Based Medicine

Cochrane Collaboration on Thyroglossal cyst

Bandolier on Thyroglossal cyst

TRIP on Thyroglossal cyst

Clinical Trials

Ongoing Trials on Thyroglossal cyst at Clinical

Trial results on Thyroglossal cyst

Clinical Trials on Thyroglossal cyst at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Thyroglossal cyst

NICE Guidance on Thyroglossal cyst


FDA on Thyroglossal cyst

CDC on Thyroglossal cyst


Books on Thyroglossal cyst


Thyroglossal cyst in the news

Be alerted to news on Thyroglossal cyst

News trends on Thyroglossal cyst


Blogs on Thyroglossal cyst


Definitions of Thyroglossal cyst

Patient Resources / Community

Patient resources on Thyroglossal cyst

Discussion groups on Thyroglossal cyst

Patient Handouts on Thyroglossal cyst

Directions to Hospitals Treating Thyroglossal cyst

Risk calculators and risk factors for Thyroglossal cyst

Healthcare Provider Resources

Symptoms of Thyroglossal cyst

Causes & Risk Factors for Thyroglossal cyst

Diagnostic studies for Thyroglossal cyst

Treatment of Thyroglossal cyst

Continuing Medical Education (CME)

CME Programs on Thyroglossal cyst


Thyroglossal cyst en Espanol

Thyroglossal cyst en Francais


Thyroglossal cyst in the Marketplace

Patents on Thyroglossal cyst

Experimental / Informatics

List of terms related to Thyroglossal cyst

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]


A thyroglossal cyst is a fibrous cyst that forms from a persistent thyroglossal duct.


It usually presents as a midline neck lump, which is painful if infected. There may be difficulty breathing, dysphagia (difficulty swallowing), and/or dyspepsia (discomfort in the upper abdomen), especially if the lump becomes large.

The most common locations for a thyroglossal cyst is midline or slightly off midline, between the isthmus of the thyroid and the hyoid bone or just above the hyoid bone. A thyroglossal cyst can develop anywhere along a thyroglossal duct, though cysts within the tongue or in the floor of the mouth are rare.

A thyroglossal cyst will move upwards with protrusion of the tongue.

Thyroglossal cysts are associated with an increased incidence of ectopic thyroid tissue. Occasionally, a lingual thyroid can be seen as a flattened strawberry-like lump at the base of the tongue.

Very rarely, the persistent duct can become cancerous, called thyroglossal duct carcinoma. In the case of thyroglossal duct carcinoma, the cancerous cells are ectopic thyroid tissue that has been deposited along the thyroglossal duct and usually follows exposure to radiation.


The thyroglossal tract arises from the foramen cecum at the junction of the anterior two-thirds and posterior one-third of the tongue. Any part of the tract can persist causing a sinus, fistula or cyst. Most fistulae are acquired following rupture or incision of the infected thyroglossal cyst.



Thyroglossal duct cysts most often present with a palpable (able to be felt) asymptomatic midline neck mass below the level of the hyoid bone. The mass on the neck moves during swallowing. Some patients will have neck or throat pain, or dysphagia.

The persistent duct or sinus can promote oral secretions, which may cause cysts to become infected. Up to half of thyroglossal cysts are not diagnosed until adult life. The tract can lie dormant for years or even decades until some kind of stimulus leads to cystic dilation. Infection can sometimes cause the transient appearance of a mass or enlargement of the cyst, at times with periodic recurrences. Spontaneous drainage may also occur.

Clinical Features

Clinical features can be found in the subhyoid portion of the tract and 75% present as midline swellings. The remainder can be found as far lateral as the lateral tip of the hyoid bone.


Treatment for a thyroglossal cyst is surgical resection, often requiring concomitant removal of the midsection of the hyoid bone. Although generally benign the cyst will be removed if the patient exhibits difficulty in breathing or swallowing, or if the cyst is infected. Even if these symptoms are not present the cyst may be removed to eliminate the chance of infection or development of a carcinoma, or for cosmetic reasons if there is unsightly protrusion from the neck.

Surgical management requires excision not only of the cyst but also of the path's tract and branches. A removal of the central portion of the hyoid bone is indicated to ensure complete removal of the tract. It is unlikely that there will be a recurrence after such an operation. At times antibiotics can be indicated if there is sign of infection.

Thyroid scans and thyroid function studies are ordered preoperatively, this is important to demonstrate that normally functioning thyroid tissue is in its usual location.