Cases reported "Choristoma"

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1/88. Glial choristoma of the tongue: a case report and review of the literature.

    Heterotopic brain tissue is an extremely rare developmental malformation. It is considered to be one of the very rare choristomatous lesions involving the oral cavity. We present a case of glial choristoma located on the dorsal surface of the tongue, midline area, in an 8-month-old African-American female baby. The clinical, histologic, and immunohistochemical features are presented. In addition, a review of previously reported cases and their probable embryogenesis are analyzed.
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2/88. lingual thyroid gland: clinical evaluation and comprehensive management.

    Although lingual thyroid gland is the most common benign mass found at the junction of the anterior two-thirds and the posterior one-third of the tongue, it is still a rare clinical entity. This developmental anomaly is the result of an arrested descent of the gland anlage early in the course of embryogenesis. patients may have symptoms of dysphagia due to obstruction or even hemorrhage. These symptoms can occur at any time from infancy through adulthood. The clinical findings, laboratory tests, and radiographic imaging studies employed in confirming the diagnosis and in planning appropriate treatment have been evaluated. The primary therapeutic goal is to restore thyroid function. We describe a case of lingual thyroid gland and summarize the current management principles for this condition.
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3/88. Transposition of the lingual thyroid: A new alternative technique.

    BACKGROUND: In symptomatic lingual thyroid, surgical transposition of the gland with its vascular supply intact seems to have superior results to those obtained by surgical ablation and autotransplantation. However, the procedure should be simple, reproducible, reliable, and cause less morbidity as well as providing simple access to and evaluation of the gland postoperatively. methods: We present the case of a 33-year-old female with lingual thyroid who was treated by transposing the whole gland to the lateral pharyngeal wall through a lateral pharyngotomy incision. The transposed lingual thyroid was nourished by a random tongue muscle pedicle flap. RESULT: At the 5-month postoperative stage, iodine scanning reviewed the radioactivity uptake of the transposed gland. Even though the patient was not on postoperative thyroid hormone supplement, her thyroid function gradually returned to normal after initially showing hypothyroid postoperatively. CONCLUSION: This new technique for transposition of lingual thyroid is simple and reliable and should be considered as an alternative method in the management of symptomatic patients.
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4/88. Heterotopic oral gastrointestinal cyst: report of 2 cases and review of the literature.

    Oral heterotopic gastrointestinal cyst is a rare entity occurring in infants and children and showing a predilection for males. The cyst usually appears as an asymptomatic swelling in the floor of the mouth. Difficulty in feeding, swallowing, respiration, and speech have been reported in approximately 30% of those affected. The tongue-in particular, its anterior aspectis involved in up to 60% of reported cases. The clinical, radiographic, and histopathologic features of cases of heterotopic gastrointestinal cyst involving the anterior tongue in a 2-year-old girl and the anterior floor of the mouth in a 2-month-old boy are presented, and theories of pathogenesis are discussed.
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5/88. Malignant ectopic thymoma in the neck: a case report.

    We report a case of malignant ectopic thymoma in the neck. Contrast-enhanced CT of the neck showed a well-defined inhomogeneously enhancing mass in the left jugulodigastric chain. One year after surgery, the mass had metastasized to the tongue base, and CT of the neck showed an ill-defined densely enhancing mass with lymphadenopathy.
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6/88. Papillary carcinoma of the base of the tongue. Case clinic.

    Ectopic lingual thyroid tissue is an uncommon developmental anomaly. Tumours of identical pathological characteristics as those arising in the eutropic thyroid tissue, may be present in ectopic locations. There are very few cases of malignant tumours reported in the literature. Here we report a review of this pathology and we describe a case of a papillary carcinoma of the base of the tongue, located in ectopic lingual thyroid tissue, in a 66 year-old white man, complaining of dysphagia and oral bleeding. Surgical treatment was carried out, consisting of radical resection of the right hemineck, tumour resection, right hemiglossectomy and total thyroidectomy. Postoperative treatment with 131I and substitutive thyroid hormonal therapy was prescribed.
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7/88. Double tongue, intraoral anomalies, and cleft palate--case reports and a discussion of developmental pathology.

    OBJECTIVE: Isolated cleft palate is the most common presentation of the nonsyndromic cleft lip/palate combinations and is multifactorial in etiology. We report two cases of children with clefts of the secondary palate coexistent with double tongue and in either case mandibular epulis or superiorly displaced salivary gland. RESULTS AND DISCUSSION: In each case, the palatal cleft correlated anatomically with the intraoral space-occupying lesion. The ratio of tongue volume to intraoral volume during palatogenesis is discussed with reference to the pathogenesis of cleft palate. These clinical cases propose the model of a unifying sequence of developmental events whereby deformation of palatal shelf elevation results in secondary palatal clefting.
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8/88. lingual thyroid--a threat to the airway.

    The occurrence of a thyroid gland superficially placed on the pharyngeal portion of the tongue is rare, but poses problems to the patient and anaesthetist. This report describes a patient with a lingual thyroid and a history of problems associated with it that resulted in admission to the ICU and warnings about future intubation of the larynx. The patient underwent awake tracheal intubation using a standard fibreoptic assisted technique, and was advised that she purchase an appropriate Medic-Alert bracelet.
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9/88. Glial lesion of the infratemporal fossa presenting as a soft tissue middle ear mass - rudimentary encephalocele or neural crest remnant?

    We report about ectopic glial tissue of the skull base and the parapharyngeal space presenting as a soft tissue mass in the middle ear. An 11-year-old boy presented with bilateral conductive hearing loss since early childhood. The history included previously removed lesions consistent with ectopic neuroglial tissue of the tongue and the parapharyngeal space soon after birth, as well as surgery for cleft palate. High resolution computed tomography of the petrous bone and magnetic resonance imaging were useful in identifying the skull base defect and in characterizing the lesion's relation to the brain. There was no clinical, radiological or surgical evidence of any associated dural defect. The lesion was removed via a modified infratemporal approach. histology revealed neuroglial tissue with calcifications without any signs of mesodermal or entodermal origin. On the basis of this case the pathogenesis and diagnosis of ectopic brain tissue and its relation to the more commonly encountered meningoencephalic herniations are reviewed. Furthermore therapeutical implications are discussed.
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10/88. 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.
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