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A parathyroid adenoma is a benign tumor of the parathyroid gland. It generally causes hyperparathyroidism; there are very few reports of parathyroid adenomas that were not associated with hyperparathyroidism. [1] A human being usually has four parathyroid glands located on the posterior surface of the thyroid in the neck.
Primary hyperparathyroidism (or PHPT) is a medical condition where the parathyroid gland (or a benign tumor within it) produce excess amounts of parathyroid hormone (PTH). ). The symptoms of the condition relate to the resulting elevated serum calcium (hypercalcemia), which can cause digestive symptoms, kidney stones, psychiatric abnormalities, and bone dis
A parathyroid neoplasm is a tumor of the parathyroid gland. Types include: Parathyroid adenoma [1] Parathyroid carcinoma ...
Chief cells in parathyroid adenomas also display acid phosphatase activity. [5] It is a benign tumor of the gland that requires surgical removal. [13] These benign adenomas are typically affect only one or two of the parathyroid glands, known respectively as a single adenoma or double adenoma. Typically, no disease is linked to the cause. [14]
Parathyroid carcinoma is a rare cancer resulting in parathyroid adenoma to carcinoma progression. [1] It forms in tissues of one or more of the parathyroid glands (four pea-sized glands in the neck that make parathyroid hormone (PTH). PTH helps the body maintain normal levels of serum calcium by promoting calcium reabsorption from bone.
Multiple endocrine neoplasia occurs when tumors are found in at least two of the three main endocrine glands (parathyroid, pituitary, and pancreatico-duodenum). Tumors can also develop in organs and tissues other than endocrine glands. If the tumors become cancerous, some cases can be life-threatening. The disorder affects 1 in 30,000 people.
The tumors may be benign or malignant . They generally occur in endocrine organs (e.g. thyroid, parathyroid, and adrenals), but may also occur in endocrine tissues of organs not classically thought of as endocrine. [2] MEN2 is a sub-type of MEN (multiple endocrine neoplasia) and itself has sub-types, as discussed below. Variants in MEN2A have ...
Often, these "localizing" tests used to "find" the bad parathyroid gland are not successful in locating which parathyroid gland has become a tumor. This often causes confusion for the patient and doctor, since the tumor was not located. This simply means that the tumor was not found using these tests; it does not mean the tumor does not exist.