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PubMed1990

Thyroglossal duct and second branchial cleft anomalies in adults.

Definitive treatment is surgical removal of the cyst and any tract, with care taken to preserve vital structures. TDCs and BCCs are congenital cervical lesions that are encountered in adults. Experiences at the Eye and Ear Hospital of Pittsburgh are reviewed. Forty-five patients with TDCs and 59 patients with BCCs were treated between 1983 and 1988. Clinical findings are discussed and principles for diagnosis are detailed.

Adolescent↗
PubMed1999

MR imaging of thyroglossal duct cysts in adults.

AIM: To describe the magnetic resonance (MR) features of thyroglossal duct cysts (TDC) in adults. PATIENTS AND METHODS: Sixteen patients with TDC underwent MR imaging to obtain T1- and T2-weighted images and T2-weighted fat saturation images. In addition, contrast enhanced images were obtained in five patients. RESULTS: The signal intensity of TDC was of that of a simple cyst in seven (44%) patients, yielding high signal intensity on T2- and low signal intensity on T1-weighted images. In nine (56%), the signal intensity was either intermediate or high on T1-weighted images, the T2 signal intensity in these cases being high (7), intermediate (1) or low (1). Enhancement of the wall of the cyst was present in three of five (60%) patients. All 16 TDC were located at or just to one side of the midline and 12 were embedded in the strap muscles. All TDC were infrahyoid in location but 11 also extended superiorly to be directly related to the hyoid. At the hyoid the cystic component was immediately posterior (6) anterior (3) or anterior and posterior (2) to the bone. Intralaryngeal extension was present in eight (50%) patients. A suprahyoid tract was identified in three patients. The thyroid gland was in a normal location in all patients. CONCLUSION: Thyroglossal duct cysts are most commonly of high T1 signal intensity consistent with high protein content. The tract leading to the base of the tongue is infrequently seen, the diagnosis being determined by the intimate relationship to the hyoid and strap muscles. Intralaryngeal extension in adult patients with TDC is more frequent than reported previously.

Adult↗
PubMed2000

[Thyroglossal cyst: retrospective study of 58 cases. Results of the Sistrunk operation].

Cysts of the thyroglossal duct are one of the most common causes of benign neck masses. They generally occur in young patients and are caused by a defect in thyroglossal duct closure, which sometimes is in close contact with the hyoid. Often several tracts are present. The most effective surgical procedure was originally described by Sistrunk in 1920 and modified in 1928. This technique is based on the removal of the central portion of the hyoid bone. This procedure has successfully reduced the number of recurrences compared to local excision of the cyst. A retrospective review was made of 58 cases to evaluate surgical results, especially recurrence rate, in relation to the resection or preservation of the hyoid bone. Results were compared with published series.

Adolescent↗
PubMed1996

Thyroid gland ectopias.

Failures of descent of the medial anlage of the thyroid and incomplete obliteration of its vertical tract lead to midline or near-midline ectopias such as lingual thyroid and thyroglossal cysts. Each poses special diagnostic and therapeutic considerations. "Ectopias" of the thyroid gland lateral to the carotid artery and jugular vein, however, cannot be readily explained by current embryological information. In these instances, and especially for intranodal thyroid tissue, a metastasis from an occult thyroid primary is the mandatory first consideration.

Carcinoma, Papillary↗
PubMedDate not supplied

An unusual case of intermittent upper airway obstruction.

Thyroglossal duct cyst is an unusual cause of intermittent upper airway obstruction and rarely produces obstructive symptoms in adults. Previous reports discuss airway obstruction in small children and infants and point out the complications of such cysts, including thyroid carcinoma, adenoma, thyroiditis, and thyrotoxicosis, as well as inflammation and infection. Diagnosis should be considered in all cases of midline neck masses and is usually aided by diagnostic imaging. Treatment may involve airway maintenance and surgical excision of the cyst and its entire tract.

Adult↗
PubMed1986

Sonography of neck masses in children.

The sonograms and medical records of 49 patients were reviewed to determine if there is a characteristic sonographic appearance for certain neck masses. Neck masses included: inflammatory masses (12), noninflammatory masses (23), and thyroid masses (14). Four entities including thyroglossal duct cyst, fibromatosis colli, cystic hygroma, and multiple lymphadenopathy showed characteristic sonographic appearance. Thyroglossal duct cysts were seen as midline or slightly off midline cystic masses. A sinus tract extending superiorly was nicely demonstrated in one patient. The mass in fibromatosis colli (neonatal torticollis) appeared as a well defined mass clearly within the sternocleidomastoid muscle, uniformly echogenic, but less echogenic than the normal surrounding muscle, without good through-transmission. A cystic or primarily cystic mass with linear septations was the characteristic finding of the cystic hygroma. Multiple lymphadenopathy demonstrated multiple discrete, oval, relatively hypoechoic masses along the cervical lymphatic chain. The sonographic appearance of inflammatory masses was variable, being either inhomogeneously echogenic or of mixed echogenicity. Hemangiomas were either echogenic with cystic vascular spaces or linear septations or relatively homogeneously echogenic. Intrinsic thyroid masses could be distinguished from extrinsic masses in most cases. The demonstration of calcification in a mass was useful in narrowing the differential diagnosis. Although it is not a specific finding, the presence of calcification highly suggests a neoplastic lesion, particularly neuroblastoma or teratoma. Not only can the location, extent, and internal characteristics of a mass be determined, but in certain entities, the sonographic appearance is characteristic and an accurate diagnosis can be made.

Adolescent↗
PubMed1998

Thyroglossal duct cyst: the New York Eye and Ear Infirmary experience and a literature review.

Thyroglossal duct cysts often present in childhood but can also afflict the adult population. In 1920, Sistrunk described surgical management and advocated the removal of the central portion of the hyoid bone, following the cyst tract to the base of the tongue. This surgical technique has not changed since its description 60 years ago. In this paper, a retrospective review of 70 thyroglossal duct cyst excisions performed at the New York Eye and Ear Infirmary from 1988 through 1996 is presented. The patient population consisted of 43 females (61%) and 27 males (39%). The average age at presentation was 21.5 years, with a range of 18 months to 64 years. The most frequent presenting symptoms was a painless midline neck mass. Computed tomography (CT) was the most frequent imaging study performed. Sixty-four patients underwent a Sistrunk procedure while five patients had excision alone. One patient was diagnosed but lost to follow-up. All five patients who underwent simple cystectomy required a second procedure. One patient who underwent the Sistrunk operation required revision. Nine patients had postoperative complications, with recurrence being the most common. We present our experience over an eight-year period.

Adolescent↗
PubMed1986

Thyroglossal ducts, cysts and sinuses: a recurrent problem.

A review of a series of 63 patients suggests that a high incidence of recurrence occurs following surgery for this condition. Histological examination demonstrates that this is due to failure to remove the central portion of hyoid bone and inadequate dissection of the tract into the tongue base. To overcome these problems, an en bloc anterior neck dissection is recommended which will encompass multiple duct formation associated with the tract.

Adolescent↗
PubMed1987

Midline cervical cysts in children. Thyroglossal anomalies.

Deep, midline cervical cysts clinically diagnosed as thyroglossal duct cysts (TDCs), have been pathologically classified as dermoid cysts because of the presence of skin appendages and a squamous epithelial lining. In 75 midline cervical masses preoperatively diagnosed as TDC, we could classify only 54 as TDC, using the preexisting criteria of squamous or ciliated columnar epithelial lining associated with a tract or thyroid follicles. Eleven cysts were reclassified as dermoid, and six were called "mixed" because of features of both dermoid cysts (skin appendages) and TDC (epithelial tract or thyroid follicles). The morphological similarity of all these lesions suggests a common origin, perhaps from totipotential tissue entrapped during the descent of the embryonic thyroglossal duct from the base of the tongue. We conclude that these lesions should be grouped together under the eponym of "thyroglossal anomalies," and that treatment for all should consist of the Sistrunk procedure.

Adolescent↗
PubMed1999

[Thyroglossal duct cysts, surgery and histology].

70 years ago Sistrunck described a specific procedure for the management of thyroglossal duct cysts. However, this surgical procedure is not performed often. In a review on 28 cases, the authors have determined whether the Sistrunck's operation was too extensive in the treatment of thyroglossal duct cysts. 28 surgicals procedures have been performed during five years, 6 Schlange's procedure and 22 Sistrunck's procedure. We have had 17% of complications with only one recurrence, after six months, with Schlange's operation. During the interventions, we have been able to see and feel a duct in only one case. This difficulty in determining the presence of a duct intra-operatively could suggest that there was no duct. So we have undertaken a histological study of all 28 specimens obtained from surgery. Results showed the presence of one or multiple tracts in 72% of cases. Finally, this study show that Sistrunck's procedure is still the best operation for treatment of all cases of thyroglossal duct cysts. All other operations, and particularly Schlange's procedure, are inadequate because they are in contradiction with histological and embryological studies.

Adolescent↗
PubMed2000

Thyroid gland and surgery of the thyroglossal duct: exercise in applied embryology.

Thyroglossal duct cysts (TDCs), the most common congenital cervical abnormality, originates from the medial anlage of the thyroid gland and presents as a painless asymptomatic midline suprahyoid mass. It does not represent a diagnostic challenge. The tract may persist as a fibrous cord or leave nests of cells anywhere along its embryonic path, and it gives rise to the development of TDC. The Sistrunk operation described in 1920 consists of en bloc cystectomy and central hyoidectomy, with tract excision up to the foramen cecum. This procedure remains an effective treatment for TDC. Malignant degeneration of TDC is rare (0.7%).

Humans↗
PubMed2000

Cervical tumor by ectopic salivary gland.

Heterotopic salivary tissue is a rare lesion, although most authors agree that anomalous embryologic development of salivary tissue is the main cause. One case of cervical tumor by ectopic salivary gland is reported, and existent literature is reviewed. A 26-year-old woman was operated on for a cystic tumor in the midline of the neck diagnosed as thyroglossal cyst in the hyoid region. After Sistrunk operation, the recurrence was immediate. A second operation was performed, and a solid tumor located between muscles of the tongue was resected. A long tract opening in recurrent cervical cystic tumor was also removed. No recurrence was evident at 1 year after surgery. Pathological examination of the excised mass revealed an ectopic salivary gland with serous and mucinous acini located between muscles of the tongue. This is a rare case report of a cervical fistula by ectopic salivary gland surrounded by muscles of the tongue draining into a cystic tumor in the hyoid midline lesion. Recurrence of thyroglossal cyst after a correct surgical resection must be suspected as an ectopic salivary tissue. Also when a cystic neck tumor is present, an ectopic salivary gland must be suspected.

Adult↗
PubMed2002

Thyroglossal duct: a review of 55 cases.

BACKGROUND: Thyroglossal duct remnants are the most common midline neck masses in childhood but can be found in adults and the elderly. Sistrunk's procedure, with dissection of the tract and removal of the hyoid bone, is accepted as the main operation of choice. STUDY DESIGN: Fifty-five patients were treated from January 1994 to November 2000, and these were studied. There were 29 men and 26 women, with a median age of 17 years. Diagnosis was clinical, with 13 cases of fistula and 42 of cyst. Size varied from 1.0 to 4.0 cm, with an average of 2.5 cm. Six patients presented with local abscess. RESULTS: All the patients underwent Sistrunk's procedure. Serum collection occurred in three patients as complication. In one patient papillary carcinoma was identified in the cyst. Total thyroidectomy was not performed. There was only one recurrence, managed with a second operation. CONCLUSIONS: We concluded that the diagnosis of thyroglossal duct is clinical. Sistrunk's procedure carries low rates of complications (9.08%) and recurrence (1.82%). Antibiotic therapy is avoidable as a rule and hospital stay is short.

Adolescent↗
PubMedDate not supplied

Evaluation and management of a carcinoma arising in a thyroglossal duct cyst.

Thyroglossal duct remnants are the most common congenital cystic lesions of the neck; however, a carcinoma arising in these structures is rare. Two new cases of a papillary adenocarcinoma arising in a thyroglossal duct cyst are presented. Preoperative evaluation, operative management, and postoperative care are discussed. Initial evaluation consisting of a thorough head and neck examination, palpation of the thyroid gland, thyroid function tests, and selective use of thyroid imaging is recommended. Removal of the cyst and tract in the manner described by Sistrunk is advocated. If an adenocarcinoma is found in the cyst and if a carcinoma is found in the thyroid gland or a thyroid scan reveals a nodule, a total thyroidectomy is recommended. A modified neck dissection and total thyroidectomy is advocated for cervical metastases. Postoperatively, thyroid suppression and long-term follow-up are encouraged. A squamous cell carcinoma arising in a thyroglossal duct remnant appears more aggressive and requires complete excision and, for confirmed cervical metastases, radical neck dissection and postoperative radiation therapy.

Adenocarcinoma, Papillary↗
PubMed1997

[Lingual thyroid and intra-lingual thyroglossal cyst. Apropos of 2 cases].

Lingual thyroid and intra lingual thyro-glossal cyst are two benign tumours of similar embryological pathogenesis respectively with the arrest in the ectopic position of the thyroid gland during its downward migration and from abnormal persistence of the thyro-glossal tract for the cyst. The occurrence of lingual thyroid is rare 1/100,000 patients and outnumbers the incidence of intra-lingual cyst which represents an estimated 2.1% of the thyro-glossal cysts or fistulas. Both lesions are a rare cause of dysphagia and dyspnoea due to oropharyngeal obstruction, and radionuclide scintigraphy combined with CT and/or MRI will establish the diagnosis. Surgical pharyngotomy with an infra-hyoid approach provides excellent access to the lesions and complete removal of the tumours.

Adolescent↗
PubMed1979

Clinicopathological studies on thyroglossal duct remnant.

The clinicopathological findings in 48 cases underwent complete surgical excision of epithelial tissue of the thyoglossal duct remnants were reviewed. Simple incision of the cyst does not seem to have any therapeutic value and would be followed frequently by recurrence. The widely used Sistrunk procedure 2,6 surgical excision of the central portion of the hyoid bone together with fibrous tract extending to the base of tongue, seems to be warranted in some cases so long as complete eradication of the epithelial tissue can be made.

Adolescent↗