1/338. Ectopic submandibular thyroid tissue.We reported a case of a 66 year-old male patient with a mass located in the right submandibular region. Surgical excision of the mass was performed and histologic examination revealed that the tumor was ectopic thyroid tissue. Additionally, imaging studies confirmed that the thyroid gland was found in its normal location and the patient had normal thyroid function testing. In reviewing the literature, we found submandibular thyroid tissue to be a rare entity with only 4 cases described. We discussed embryologic development of the normal thyroid gland and some explanations as to the origins of several forms of ectopic thyroid tissue, including that found in the submandibular region.- - - - - - - - - - ranking = 1keywords = thyroid (Clic here for more details about this article) |
2/338. Lingual ectopia of the thyroid gland and autotransplantation.A case of lingual ectopia of the thyroid gland in an adult patient is presented. The management by total excision and autotransplantation of the thyroid is described with a brief review of literature.- - - - - - - - - - ranking = 0.6keywords = thyroid (Clic here for more details about this article) |
3/338. Pharyngeal thyroid: a case report.A 48-year-old woman presented with dysphagia. On examination of the pharynx, a mass was visible behind and adjacent to the right tonsil. It was excised and proved to be ectopic thyroid tissue.- - - - - - - - - - ranking = 0.5keywords = thyroid (Clic here for more details about this article) |
4/338. Follicular carcinoma in ectopic thyroid gland. A case report.Ectopic thyroid rest can be seen anywhere along the path of descent of the gland. The most ectopic thyroid tissue is a thyroglossal duct cyst associated with normal thyroid gland. Sublingual location is less common than a lingual ectopia. True malignant transformation in ectopic thyroid tissue is extremely rare. Such a malignancy is virtually always diagnosed only after surgical excision of the lesion at pathological examination. This report discusses a case of ectopic thyroid follicular carcinoma in the right submandibular region in the absence of orthotopic thyroid, discovered by chance after the surgical excision performed for a preoperative ultrasonically and cytologically misdiagnosed submandibular gland adenocystic carcinoma. The possible aetiology of such an unusual anatomical relationship is discussed as well as the importance of thyroid scanning, ultrasound and/or CT in neck lumps.- - - - - - - - - - ranking = 1.1keywords = thyroid (Clic here for more details about this article) |
5/338. Ectopic thyroid in the abdomen: report of a case.Ectopic thyroid tissue can be seen anywhere along the path of the descending glands, but it is rarely seen in the abdominal cavity. An ectopic thyroid was encountered incidentally in the pancreas of a 50-year-old woman who underwent a bilateral truncal vagotomy and pyloroplasty for a duodenal ulcer. There were no signs or symptoms of a thyroid tumor.- - - - - - - - - - ranking = 0.7keywords = thyroid (Clic here for more details about this article) |
6/338. 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.- - - - - - - - - - ranking = 0.7keywords = thyroid (Clic here for more details about this article) |
7/338. technetium-99m pertechnetate uptake in ectopic parathyroid adenoma.A 37-year-old male with a persistent increased parathyroid hormone level, after subtotal thyroidectomy and parathyroidectomy, was referred for scintigraphic localization of a possible ectopic parathyroid adenoma. Tc-99m pertechnetate and Tc-99m MIBI scintigraphy were performed on separate days. There was marked uptake of both tracers in the mediastinum, which at surgery was confirmed to be an extrathyroidal parathyroid adenoma. Hypervascularity was suggested as a possible explanation for rare cases of pertechnetate avid parathyroid adenomas. And Tc-99m MIBI scintigraphy proved to be a successful imaging procedure for ectopic parathyroid tissue.- - - - - - - - - - ranking = 1.2keywords = thyroid (Clic here for more details about this article) |
8/338. Familial occurrence of congenital hypothyroidism due to lingual thyroid gland.Two sisters who presented with midline neck masses proved to be biochemically hypothyroid. Thyroid scintigraphy supplemented with perchlorate discharge testing showed lingual thyroid glands and ruled out the expected autosomal recessive organification defect. The related literature is reviewed.- - - - - - - - - - ranking = 1keywords = thyroid (Clic here for more details about this article) |
9/338. Spindle epithelial tumor with thymus-like differentiation (SETTLE) of the thyroid with prominent mitotic activity and focal necrosis.Spindle epithelial tumor with thymus-like differentiation (SETTLE) is a rare, apparently low-grade spindle cell tumor of the thyroid gland occurring in young individuals and thought to be derived from thymic or branchial pouch remnants. Spindle epithelial tumor with thymus-like differentiation has little to no mitotic activity, and focal necrosis has been reported in one case. We present a case of SETTLE in a 29-year-old man that was initially evaluated by fine-needle aspirate biopsy and ultimately found to be consistent histologically with SETTLE. In this case, there were numerous mitotic figures among the spindle cells and focal necrosis. Spindle epithelial tumor with thymus-like differentiation has been considered to be a tumor of low malignant potential with metastases developing some years after diagnosis. This is the first case in which prominent mitotic activity and necrosis is reported perhaps representing an aggressive variant.- - - - - - - - - - ranking = 0.5keywords = thyroid (Clic here for more details about this article) |
10/338. Pre-surgical localization of ectopic parathyroid glands using three-dimensional CT imaging, 99Tcm sestamibi, and 99Tcm tetrofosmin imaging.We describe two patients with ectopic parathyroid glands evaluated with 99Tcm sestamibi, 99Tcm tetrofosmin, and three-dimensional computed tomography (3D-CT). Radionuclide images of the neck were acquired at 10 min, and at 2-3 h after radiopharmaceutical injection, and showed intense uptake in the ectopic parathyroid tissue. These patients also underwent contrast enhanced CT imaging with 3D reconstructions which were evaluated for ability to visualize critical anatomical structures, e.g. blood vessels and parathyroid glands. Based on 3D-CT images, surgical planning was altered in one of the two patients studied. In conclusion, reconstructed 3D-CT images provided useful anatomical localization of ectopic parathyroid glands identified on 99Tcm sestamibi and 99Tcm tetrofosmin imaging. This anatomical information aided surgical planning of gland resection.- - - - - - - - - - ranking = 0.8keywords = thyroid (Clic here for more details about this article) |
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