Cases reported "Parathyroid Diseases"

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11/49. Functional giant parathyroid cyst with high concentration of CA19-9 in cystic fluid.

    A 63-year-old man was admitted to our hospital for the evaluation of hypercalcemia and anterior neck mass. Laboratory findings revealed hypercalcemia, hypophosphatemia, and hypercalciuria, as well as elevated serum levels of parathyroid hormone (PTH) and alkaline phosphatase. Computerized tomography and magnetic resonance images showed that the mass contained a cystic area. Parathyroid scintigraphy using either 99mTc-sestamibi alone or 201Tl-chloride in conjunction with 99mTc-pertechnetate for thyroid image subtraction showed uptake of the radioactivity into the cyst wall, suggesting that the mass originated from the parathyroid. Fine needle aspiration biopsy revealed that the cyst fluid was serous and bloody with extremely high concentrations of both PTH and CA19-9. The patient was diagnosed as primary hyperparathyroidism caused by parathyroid cyst and cervical exploration was performed. The cyst was dissected away along with the right lobe of the thyroid gland. After tumor removal, serum calcium and PTH levels were normalized. Histological study showed that the tumor possessed malignant potential with capsular invasion as well as moderate cellular atypia with trabecular pattern in arrangement. Parathyroid cells in the wall of the cystic tumor were immunostained positively for CA19-9, suggesting that CA19-9 in the cyst fluid was produced from the cells.
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keywords = neck
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12/49. Parathyromatosis and recurrent hyperparathyroidism.

    Parathyromatosis is an uncommon cause of hypercalcemia. We describe a case of parathyromatosis and hypercalcemia in a 38-year-old man with a history of end-stage renal disease and subtotal parathyroidectomy in which a previous parathyroid operation was implicated. The results of fine-needle aspiration and histologic examination demonstrated a neck mass consistent with parathyromatosis. We discuss parathyromatosis as a rare cause of recurrent hypercalcemia in patients with end-stage renal disease and in those who have undergone previous parathyroid operations. We also characterize the iatrogenic and the embryologic pathogenetic factors involved.
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keywords = neck
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13/49. Hyperfunctioning parathyroid cysts: a case report.

    Parathyroid cysts are infrequent lesions of which most are non-functional. They are often misdiagnosed as thyroid cysts. Pre-operative diagnosis and differentiation from thyroid cysts is generally difficult. We hereby report a case that was admitted to the emergency room and was diagnosed as hypercalcemic crisis. The mass found during the neck examination was thought to be a thyroid nodule. A right total and left subtotal thyroidectomy was performed. Palpable thyroid nodule was diagnosed as cystic parathyroid adenoma postoperatively. When a cystic lesion is found in the neck of a patient, a pararthyroid cyst should be considered.
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keywords = neck
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14/49. Parathyroid cysts: description of two cases and review of the literature.

    Parathyroid cysts are a relatively rare cause of neck swelling, and their anatomo-pathological and clinical features are still under debate. Two types of parathyroid cysts have been recognized: the non-functioning or essential forms, which are more frequent, and the adenomatous or functioning parathyroid cysts, which are rarer and cause hyperparathyroidism. Two cases of parathyroid cysts are reported and the treatment is described bearing in mind the various therapeutic procedures proposed in the literature. attention is focused on pre-operative differential diagnosis from other masses, in the same area, and, to this end, the importance is stressed of assaying parathyroid hormone levels in the cystic fluid, obtained by fine-needle aspiration, and correlating these values with serum levels of the hormone.
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keywords = neck
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15/49. Familial parathyroid hyperplasia: is there a place for minimally invasive surgery? Description of the first treated case.

    While the majority of patients affected with sporadic primary hyperparathyroidism (sPHPT) can be selected for minimal access surgery, patients affected with 4-gland hyperplasia still do not represent an indication for it. Minimally invasive video-assisted parathyroidectomy (MIVAP) was introduced in 1996; this technique relies on a single central incision and external retraction and therefore allows a bilateral neck exploration. This was the case of a 27-yr-old female with familial primary hyperparathyroidism (FPHPT). Three enlarged glands were immediately identified in orthotopic positions and the fourth was intrathyroideal. A subtotal parathyroidectomy was then performed, leaving a small fragment of the inferior right gland and completed with the cervical thymectomy by inverting the positions of the camera and the retractor assistants with regard to the positions originally described. Quick intraoperative PTH assay (QPTH) confirmed the surgical cure of the disease.
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keywords = neck
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16/49. Recurrent nerve palsy due to parathyroid cyst.

    cysts of the parathyroid gland are uncommon neck masses and difficult to diagnose. They can cause symptoms by endocrinological function or by pressure on surrounding structures. A case of recurrent nerve palsy due to a parathyroid cyst is presented. Aspiration of parathyroid cysts can be diagnostic and therapeutic in some cases.
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17/49. Parathyroid cyst: diagnosis and treatment of an unusual surgical problem.

    A case of parathyroid cyst is reported in which the diagnosis was suggested when watery, clear fluid was aspirated from a mass found in the anterior region of the neck of a 34-year-old woman on routine medical examination. The diagnosis was confirmed by measurement of the parathormone content in the cyst fluid and by histologic examination of the cyst wall. Although rare, parathyroid cyst should be considered in the differential diagnosis of cysts in the anterior compartment of the neck. Surgery has been the usual treatment of such cysts, but several reports have been published in which repeated aspiration resulted in the disappearance of the cyst. If conservative treatment of a parathyroid cyst is unsuccessful, the cyst should be removed surgically.
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keywords = neck
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18/49. Parathyroid cyst: report of case in the mediastinum.

    Though a rare lesion a parathyroid cyst is of clinical significance because it usually mimics a thyroid cyst and can be associated with hyperparathyroidism. The cyst can be ectopic with location in the lateral neck or in the mediastinum and therefore constitutes a differential diagnosis to a branchial or thymic cyst. A case report of a mediastinal parathyroid cyst without hyperparathyroidism is presented. Fine needle aspiration with parathyroid hormone assay on the cyst fluid will reveal the correct diagnosis. Surgical removal of the cyst is recommended, and hyperparathyroidism should be considered.
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19/49. Parathyroid cyst: case report of a rare surgical lesion of the neck.

    A thirty-two year old female presented with a neck mass of probable thyroid origin. Repeated fine needle aspirations failed to provide diagnostic tissue or long-term resolution of the cystic mass. The clinical and pathologic findings in this case of a parathyroid cyst are presented. Parathyroid cyst is a rare cause of neck mass. recurrence of a cyst is also unusual following aspiration. The aspiration of clear watery fluid from a neck mass offers presumptive evidence of a parathyroid cyst. The demonstration of parathyroid hormone in the cyst fluid is considered diagnostic.
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keywords = neck
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20/49. Parathyroid cysts.

    Parathyroid cysts are relatively uncommon lesions. Approximately 200 cases have been reported. Despite their location in the region of the thyroid gland, they have not previously been discussed in the otolaryngologic literature. They arise from remnants of the pharyngeal pouch or as a result of cystic degeneration of a parathyroid adenoma. A case of a parathyroid cyst occurring in a 13-year-old female is presented. This is the youngest case ever reported. Fine needle aspiration of an anterior neck mass yielded clear fluid, a finding highly suggestive of a parathyroid cyst. radioimmunoassay of the fluid demonstrated a high level of parathormone and low level of thyroglobulin concentration, thereby confirming the diagnosis. In this case, which was diagnosed by FNA, the need for a trial of thyroid hormone suppression or hemithyroidectomy was obviated.
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