1/15. A case of ectopic parathyroid gland hyperplasia in the pyriform sinus.Variability in the location of parathyroid glands is well recognized. There are usually 4 parathyroid glands located in the area of the thyroid gland, but embryologically, they may be found anywhere from the angle of the jaw to the pericardium. We report a case of an ectopic parathyroid gland in the pyriform sinus. It appeared as a tumorous lesion in the pyriform sinus owing to progress of secondary hyperparathyroidism.- - - - - - - - - - ranking = 1keywords = gland (Clic here for more details about this article) |
2/15. Acute suppurative thyroiditis caused by an infected piriform sinus fistula with thyrotoxicosis.We report herein an unusual case of thyrotoxicosis caused by acute suppurative thyroiditis (AST) infected through a piriform sinus fistula (PSF). A 28-year-old man presented with pain over the thyroid gland and elevated serum thyroid hormone levels, a picture similar to subacute thyroiditis. A fine-needle aspiration biopsy from the left lobe showed neutrophil infiltration, and culture from the aspirate grew anaerobic peptostreptococcus. A neck computed tomography (CT) scan showed an abscess in the thyroid gland, and barium swallow revealed the presence of PSF. Appropriate antibiotic treatment ameliorated his symptoms of infection, followed by normalization of thyroid function. Three months later, he underwent fistulectomy and partial left lobectomy. The end of the PSF track was found in the left thyroid lobe. Thus infection of the thyroid gland through the infected PSF was likely the cause of supprative thyroiditis. The unusual clinical features of AST in this patient include the presence of severe thyrotoxicosis, relatively late onset (28-years-old) of infection despite the presence of congenital PSF, and the lack of acute inflammatory signs on the overlying skin of the thyroid gland. It is important to recognize this type of AST, since fistulectomy is required to prevent recurrent AST.- - - - - - - - - - ranking = 0.5keywords = gland (Clic here for more details about this article) |
3/15. A pharyngeal and ectopic hypophysis in a neonate with craniofacial abnormalities: a case report and review of development and structure.OBJECTIVE: A large excrescence was found bulging from the mucoperiosteum of the nasopharynx in a neonate displaying abnormal craniofacial features. The aim of this study was to determine the nature of this tissue mass. DESIGN: Histological examination of this mass of tissue and the surrounding nasopharyngeal mucosal tissue, as well as tissue located in the sella turcica of the sphenoid bone, were carried out. In addition, tissue in a canal connecting the large mass to the sella turcica was removed for analysis. RESULTS: Nervous elements and adenohypophyseal tissue were histologically identified in the large excrescence, but were separate from adenohypophyseal tissue of the pharyngeal hypophysis. Both structures were located in the mucoperiosteum of the nasopharynx. CONCLUSIONS: The large tissue mass found in the nasopharynx is histologically identical to a sellar hypophyseal gland, but differed from the adjacent pharyngeal hypophysis in histological composition. The mass, although sellar in nature, however, was placed ectopically in the nasopharynx and is hence termed pharyngosellar to indicate its abnormal position, as well as its origin.- - - - - - - - - - ranking = 0.125keywords = gland (Clic here for more details about this article) |
4/15. A rare cause of wheezing in infancy.We describe an infant with recurrent wheezing and cough caused by an oropharyngeal cyst. Mucosal oropharyngeal cysts arise from obstruction or traumatic severance of a duct in a minor salivary gland, which leads to retention of mucous secretion . The mucosal cyst of the oropharynx is a rare cause of respiratory distress in the infants. The clinical symptoms depend on the size, shape, and location of the cyst.- - - - - - - - - - ranking = 0.125keywords = gland (Clic here for more details about this article) |
5/15. Plunging ranula localized in the parapharyngeal space.Plunging ranulas are a mucous extravasation and usually originate from the sublingual gland. They dissect between the facial planes and muscle of the base of the tongue to the submandibular triangle. We report here a rare case of plunging ranula localized in the parapharyngeal space. The relevant anatomy is reviewed and discussed.- - - - - - - - - - ranking = 0.125keywords = gland (Clic here for more details about this article) |
6/15. Differential diagnosis and surgical management of parapharyngeal masses: review and an unusual illustrative case.diagnosis and management of swellings of the parapharyngeal space are difficult because of the inaccessibility of the region, which contains part of the parotid gland with major vascular and neural structures that may be subject to disease. An unusual case of a spherical mass with a calcified margin within the parapharyngeal space is presented; it illustrates an approach to diagnosis and management.- - - - - - - - - - ranking = 0.125keywords = gland (Clic here for more details about this article) |
7/15. pyriform sinus fistula: an unusual cause of recurrent retropharyngeal abscess and cellulitis.Recurrent retropharyngeal cellulitis and recurrent suppurative thyroiditis are rare entities that share a common cause. A congenital fistula from the pyriform sinus apex to the thyroid gland has been identified in approximately 23 cases of suppurative thyroiditis and now has been implicated in a case of retropharyngeal abscess and repeated episodes of cellulitis. Virtually all reported cases have been on the left side, and the fistula is usually identified with a barium swallow study. When the esophagogram fails to demonstrate a fistula, a careful endoscopic search in the area of the left pyriform sinus should be actively pursued. An external surgical approach, which includes resection of the entire tract and involved area of the left thyroid, has been curative in all reported cases subjected to definitive surgical exploration.- - - - - - - - - - ranking = 0.125keywords = gland (Clic here for more details about this article) |
8/15. Piriform sinus fistula as a route of infection in acute suppurative thyroiditis.A case of acute suppurative thyroiditis due to a left piriform sinus fistula was reported. A five-year old boy had a acutely painful tumor in the anterior part of the neck. It was a diffuse, firm, warm erythematous tumor, and laboratory, radiologic findings showed the acute inflammation of the left lobe of thyroid. a barium swallow revealed a very thin fistula originating from the apex of the left piriform sinus extending antero-inferiorly. This fistula was considered to be a route of infection in acute suppurative thyroiditis, allowing bacterial infection to begin in the perithyroidal space and spread to the thyroid gland. The complete fistulectomy was required for a permanent cure, but an administration of antibiotics was very effective in this case.- - - - - - - - - - ranking = 0.125keywords = gland (Clic here for more details about this article) |
9/15. Thymopharyngeal duct cyst: MR imaging of a third branchial arch anomaly in a neonate.Third branchial arch anomalies are rare. The authors present a case report of a neonate with a rapidly growing neck mass due to cystic dilation of a persistent thymopharyngeal duct, which is a derivative of the third branchial arch. The presence of thyroid and thymic tissue in the cyst wall, the communication of the cyst with the piriform sinus, and the relationship of the cyst to carotid vessels and the sternomastoid muscle were consistent with the features of a thymopharyngeal duct cyst embedded in the thyroid gland.- - - - - - - - - - ranking = 0.125keywords = gland (Clic here for more details about this article) |
10/15. pyriform sinus fistula.Three patients had cervical draining sinus communicating with the pyriform sinus and one patient had acute suppurative thyroiditis resulting from infection through the pyriform sinus. There was a moderate to severe perithyroidal inflammation in all 4 cases. The age of onset ranged from 7 to 18 years old (mean; 12) but that of confirmation 9, 15, 18 and 67 years of age. Three of the patients were male and 3 of the cases involved the left side. All patients had suffered from several recurrences of cervical abscess, ranged from 2 to 7 times (mean; 4). Characteristic clinical features included 1) onset at a young age 2) frequent recurrence unless the fistula was extirpated completely 3) presenting with cervical draining sinus after repeated incision and drainage. It is supposed that the fistula is a route of infection mainly in the perithyroidal space and subsequently into the thyroid gland. When the fistula communicates directly with the thyroid gland, it can cause primary acute suppurative thyroiditis. Chronic cervical draining sinus with histories of repeated incision and drainage may be the clue to the diagnosis. A barium paste swallow study is the radiologic procedure of choice and complete removal of the fistula is the treatment of choice.- - - - - - - - - - ranking = 0.25keywords = gland (Clic here for more details about this article) |
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