Congenital cysts, sinuses and fistulas of the neck.
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The removal of a thyroglossal duct or sinus is a common pediatric surgical operation. It has been taught that if the duct remnant is removed down to and including the middle third of the hyoid bone, the "correct" operation has been done. The three authors have an experience totaling over 60 years in pediatric surgery during which time they operated on 270 thyroglossal duct cysts and sinuses. In this group were 27 recurrences of which three belonged to the authors. Most recurrent thyroglossal duct remnants were found to have the middle third of the hyoid bone still in place, and with its removal the patients were cured. However, during this period of time, there were thyroglossal duct cysts and sinuses which recurred in spite of the "correct" surgical procedure having been done. These patients had all been operated on between three and five times thus creating a difficult and unusual problem. The solution to these recurrent thyroglossal duct cysts and sinuses were deeper excisions to remove residual tracts deep to the previously removed hyoid bone, and/or wider excisions to excise previously missed respiratory epithelial remnants which deviated laterally from the midline. The latter tissue was found to be a more centrally directed branchial cleft sinus.
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Planar imaging has made significant contributions to the evaluation of patients with non-nodal neck masses. The clinical history, physical examination, and imaging characteristics of these lesions are often complimentary. Yet, planar imaging much more accurately defines the size, location, and extent of these lesions than is revealed on physical examination. The CT and MR characteristics are often sufficiently specific to arrive at the correct preoperative diagnosis in these patients. We present the classical radiographic and clinical features of several non-nodal neck masses.
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A 50-year-old male had an occult thyroglossal duct carcinoma in the thyroglossal duct remnant attached to the upper pole of a thyroglossal duct cyst which was noticed due to extravasation of the cyst. After the patient had been struck into the thyroid cartilage with the tip of a bamboo sword while practicing Japanese fencing. The authors emphasize again that the important matter in the treatment of thyroglossal duct cysts is the removal of the whole thyroglossal duct remnant with the central portion of the hyoid bone according to Sistrunk's method in order to prevent not only recurrence of the thyroglossal duct cyst but also not to overlook any microcarcinoma.
OBJECTIVE: To study the clinical value of thyroid imaging in differentiate the origin cervical mass. METHOD: Sixty-nine patients with cervical mass were subjected to 99mTc-pertechnetate imaging. 99Tc-MIBI hot spot imaging and perfusion imaging were performed in some of patients with cold or cool nodules. The findings of thyroid imaging were compared with follow up and histopathologic results. RESULT: Thirty-three of 69 patients were found with thyroid nodules, 36 patients mass were outside thyroid. Twelve of 33 thyroid nodules were found to be subacute thyroiditis. Two cases regarded as thyroglossal duct cyst were found to be ectopic thyroid glands. Twenty-seven of 36 masses out side thyroid were thyroglossal duct cysts. CONCLUSION: 99m Tc-pertechnetate imaging, 99mTc-MIBI hot spot imaging and perfusion imaging are useful to differentiate the origin of cervical mass, and differentiate ectopic thyroid from thyroglossal duct cyst.
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The thyroïd pseudo-nodules constitute cervical lesions that can simulating neoplastic thyroid lesions either by their size or by their "cold" character in scintigraphy. We describe 3 cases of thyroïd pseudo-nodules collected in 10 years: a thyroid hydatid cyst, a schwannoma of the recurrent nerve and a thyroglossal duct cyst. Throw these observations, the authors discuss the problems of differential diagnosis set out with these pseudo-nodules. Although the diagnosis in the 3 cases, was histological after post operative exam, the authors insist throw a review of the literature, on the place of fine needle aspiration cytology in the therapeutic strategy that can show specific signs for some lesions. For the other cases, surgery resection is effected to eliminate malignant lesions who are the principal differential diagnosis of thyroid pseudo-nodules.
Thyroglossal duct cyst, a common clinical entity, may undergo malignant change. The majority of such malignancies are capillary adenocarcinomas; squamous cell carcinomas are rare. Only 7 cases have been reported since 1950. The authors present a case of a 65 years old man who died 16 months after the tumor's discovery.
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