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Thyroglossal duct
Duct not labeled, but arises nearest to region identified as 'pyramidal lobe')
Pattern of the branchial arches. I-IV branchial arches, 1-4 branchial pouches (inside) and/or pharyngeal grooves (outside) a Tuberculum laterale b Tuberculum impar c Foramen cecum d Ductus thyreoglossus e Sinus cervicalis
Details
Carnegie stage
14
Identifiers
Latin
ductus thyreoglossus
TE
duct_by_E5.4.2.0.0.1.22 E5.4.2.0.0.1.22
FMA
77274
Anatomical terminology
[edit on Wikidata]
The thyroglossal duct is an embryological anatomical structure forming an open connection between the initial area of development of the thyroid gland and its final position. It is located exactly mid-line, between the anterior 2/3 and posterior 1/3 of the tongue.
The thyroid gland starts developing in the oropharynx in the fetus and descends to its final position taking a path through the tongue, hyoid bone and neck muscles. The connection between its original position and its final position is the thyroglossal duct. This duct normally atrophies and closes off as the foramen cecum before birth but can remain open in some people.
A thyroglossal cyst is a fibrous cyst that forms from a persistent thyroglossalduct. Thyroglossal cysts can be defined as an irregular neck mass or a...
The thyroglossalduct is an embryological anatomical structure forming an open connection between the initial area of development of the thyroid gland...
A persistent thyroglossalduct is a usually benign medical condition in which the thyroglossalduct, a structure usually only found during embryonic development...
causes, including congenital conditions like branchial anomalies and thyroglossalduct cysts. Workup of a neck mass includes a medical history and a physical...
known as Lalouette's pyramid. The pyramidal lobe is a remnant of the thyroglossalduct, which usually wastes away during the thyroid gland's descent. Small...
sulcus. The foramen cecum is also the point of attachment of the thyroglossalduct and is formed during the descent of the thyroid diverticulum in embryonic...
and thyroid may all present as cystic masses of the neck. Unlike a thyroglossalduct cyst, when swallowing, the mass should not move up or down. Four branchial...
Fig. 20. Recurrent/residual thyroglossalduct cyst in a 39-year-old male patient. The first resection of thyroglossalduct cyst showed histopathology evidence...
atmospheric electro-pop music Thyroglossal cyst, a fibrous cyst that forms in the throat from a persistent thyroglossalduct Tight glucose control, a practice...
pouches (inside) and/or pharyngeal grooves (outside) a Lateral lingual swellings b Median tongue bud c Foramen cecum d Thyroglossalduct e Cervical sinus...
included in this group are:: 682–3 Bronchogenic cyst Branchial cyst Thyroglossalduct cyst Cutaneous ciliated cyst Median raphe cyst Pseudocyst of the auricle...
thyroid tissue") can also occur, and arises from remnants of the thyroglossalduct, and may appear anywhere along its original length. Accessory thyroid...
pharyngeal gut when it already has a belobed diverticulum shape. The thyroglossalduct keeps the thyroid joined to the tongue until it disappears. The thyroid...
This includes common causes of neck masses in children, including: thyroglossalduct cyst. branchial cleft cyst. dermoid cyst. inflammatory lymphadenitis...
Otorhinolaryngology Surgical management option for thyroglossal cyst. Complete excision of thyroglossal tract with removal of hyoid and suprahyoid tract...
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