Cases reported "Choristoma"

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11/88. Ectopic lingual thyroid as unusual cause of severe dysphagia.

    Ectopic lingual thyroid is an uncommon embryological aberration characterized by the presence of thyroid tissue located in a site different from the pretracheal region as in the normal. lingual thyroid is the most frequent ectopic location of the thyroid gland, although its clinical incidence varies between 1:3000 and 1:10,000. We present the case of a 26-year-old woman who presented severe dysphagia caused by a mass located on the base of the tongue in the midline. An endoscopic partial removal of the ectopic tissue allowed her to rapidly regain her swallowing capacity. The literature regarding the incidence and diagnosis of lingual thyroid is reviewed and the possibilities of treatment discussed.
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12/88. Cystic and glial mixed hamartoma of the tongue.

    Choristomas and mixed hamartomas of the oral cavity are uncommon lesions that show a variety of clinical presentations, histological appearances and growth patterns. We report a case of an unusual mixed hamartoma of the posterior tongue composed of dermoid cyst, sebaceous and glial elements. magnetic resonance imaging indicated a predominantly cystic lesion limited to the pharyngeal and posterior part of the anterior tongue. A conservative approach was adopted and the lesion has shown minimal growth for 2 years following diagnosis.
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13/88. Massive bleeding from an ectopic lingual thyroid follicular adenoma during pregnancy.

    Ectopic thyroid is a rare developmental anomaly. It can be found anywhere between the foramen cecum and the normal position of the thyroid gland. Massive bleeding from an ectopic lingual thyroid is unusual and occasionally fatal. We present a case of a 22-year-old woman who had a large mass at the base of the tongue for over 6 years. In the sixth month of pregnancy, the patient experienced massive bleeding from the tongue base mass. A thyroid scan revealed that this mass was the only functioning thyroid tissue. Because of massive bleeding and her shock status, the patient received an emergent embolization of the bilateral lingual arteries. Then the huge lingual thyroid was subsequently excised via a mandible swing approach to prevent further episodes of bleeding. pathology analysis indicated ectopic thyroid tissue with follicular adenoma. She delivered without complications in the 36th week and had a normal baby. This case was a very rare one in our review. Although ectopic lingual thyroid usually is not managed surgically, excision of ectopic lingual thyroid can be life-saving when it is causing bleeding or airway obstruction.
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14/88. Primary ectopic thyroid papillary carcinoma in the floor of the mouth and tongue: a case report.

    We report a rare case of papillary carcinoma in the tongue and floor of the mouth with metastasis in cervical lymph nodes. Treatment was by total thyroidectomy with right radical lymph node dissection of the neck, followed by 60 Gy of radiotherapy and 100 mCi (131)I. Pathological examination of the thyroid gland showed no primary cancer. We review publications about ectopic thyroid and the value of antithyroglobulin immunostaining for diagnosis and treatment of the tumour.
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15/88. Heterotopic gastric mucosa of the tongue and the oesophagus.

    A case of gastric heterotopia of the tongue and one of heterotopic gastric mucosa of the oesophagus are described. From a comprehensive review of the world literature it appears that the present case of lingual gastric heterotopia is only the eighth so far reported and the first occurring in a woman. The site of the polypoid formation medially in the body of the tongue and its presence since birth indicate a congenital malformation. As to the observation of heterotopic gastric mucosa in the oesophagus, it is worth noting that the aberrant tissue was located in a wide area between two sites of squamous carcinoma of the oesophagus. Primary adenocarcinoma of the upper third of the oesophagus is extremely rare and its histogenesis becomes even more controversial when consideration is given to some of the features of the case presented. In particular, the hypothesis that adenocarcinoma may arise from heterotopic gastric epithelium is doubtful and does not explain the origin of all adenocarcinomas in the upper third of the oesophagus. The assumption that it may arise from oesophageal glands and/or from tracheobranchial rests remains well-founded.
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16/88. lingual thyroid: a clinical case.

    lingual thyroid is an abnormal formation appearing as the result of a deficient descent during embryological development of the thyroid gland through the thyroglossal duct to its normal pretracheal location. The lesion consists of a tumor mass of thyroid tissue located at the base of the tongue, in the region of the foramen caecum linguae. The size can vary from a few millimeters to several centimeters in diameter. More than 400 cases of lingual thyroid have been documented in the literature to date. lingual thyroid has been identified in 10% of the tongues examined in some autopsy series. Its identification is of great significance, since it may constitute the only functional thyroid tissue in the body, and may inadvertently be destroyed as a result of histological biopsy procedures. The present study presents a clinical case of lingual thyroid in a 17-year-old female.
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17/88. Dermoid, teratoma or choristoma? A rare lesion of the tongue in an adult.

    The nomenclature of developmental lesions in the tongue is confusing. We present a rare case in an adult and describe the clinical and histopathological features. terminology of these lesions is also discussed.
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18/88. Osseous choristoma of the oral soft tissue. Case report.

    Oral osseous choristoma is a rare developmental alteration, their principal localization is nearly to base of the tongue (foramen caecum). The oral mucosa localization of osseous choristoma is extremely rare. At date only 10 cases of oral mucosa osseous choristoma had been reported. In the present paper we reported a new case of oral mucosa osseous choristoma in a klippel-feil syndrome patient. A review of available literature was made. We presented a 28 years old female patient who showed into the right oral mucosa, a hard, mobile, and asymptomatic mass, with minimum 4 years of evolution. The histological image showed a lesion constituted by lamellar bone, osteocytes and haematopoyetic tissue. The diagnosis of osseous choristoma was made. It is discusses their possible association with klippel-feil syndrome. The osseous choristoma of buccal mucosa is most frequently in fifth decade of the life although is reported between 12-to-64 years old, with a female predisposition.
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19/88. Dual ectopic thyroid: report of a case.

    Dual ectopic thyroid is very rare. We report a case of dual ectopic thyroid in the lingual and infrahyoid areas in a 20-year-old female patient with no thyroid gland in its normal anatomical location. On physical examination, there was a 7 x 5 cm anterior midline neck swelling just below the hyoid bone and a 2 x 2 cm mass in the base of the tongue. triiodothyronine (T(3)), thyroxine (T(4)), and thyroid-stimulating hormone (TSH) levels were normal. A thyroid scan with technetium-99m sodium pertechnate confirmed dual ectopic thyroid with no iodine uptake in the normal anatomical location of the thyroid gland. The infrahyoid ectopic thyroid was surgically removed for cosmetic reasons, and the lingual thyroid, which was symptomatic, was left untouched. The importance of thyroid scanning in the evaluation of anterior midline neck swellings and treatment options are discussed.
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20/88. Gigantiform choristoma of the lateral tongue. The report of a rare case and discussion of the literature.

    The case presents an unusual choristoma of the tongue. The lesion was larger than those in previously reported cases and had an atypical duration of 12 years. It also is the first reported lingual choristoma not located in the posterior tongue. Based on the comprehensive findings and corroboration with the literature discussed here, we recommend the name gigantiform choristoma.
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