hyperparathyroidism

hyperparathyroidism
/huy'peuhr par'euh thuy"roy diz'euhm/, n. Pathol.
overactivity of the parathyroid gland, characterized by softening of the bones, with consequent pain, tenderness, and a tendency to spontaneous fractures, and by muscular weakness and abdominal cramps.
[1915-20; HYPER- + PARATHYROID + -ISM]

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      abnormal increase in the secretion of parathyroid hormone by one or more parathyroid glands (see parathyroid gland). The oversecretion is usually caused by a tumour or enlargement of parathyroid tissue and results in high blood and urine calcium and low blood and high urine phosphorus. The excess calcium is withdrawn from the bones, resulting in ( osteoporosis) and an increased susceptibility to fracture. Other effects are kidney stones (kidney stone) and decreased nervous and muscular excitability. Treatment is usually surgical removal of the tumour or excess parathyroid tissue.

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Universalium. 2010.

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  • hyperparathyroidism — noun Date: 1917 the presence of excess parathyroid hormone in the body resulting in disturbance of calcium metabolism with increase in serum calcium and decrease in inorganic phosphorus, loss of calcium from bone, and renal damage with frequent… …   New Collegiate Dictionary

  • hyperparathyroidism — noun An abnormal increase in parathyroid gland activity …   Wiktionary

  • hyperparathyroidism — A condition due to an increase in the secretion of the parathyroids, causing elevated serum calcium, decreased serum phosphorus, and increased excretion of both calcium and phosphorus, calcium stones and sometimes …   Medical dictionary

  • hyperparathyroidism — n. abnormally active parathyroid glands (Medicine) …   English contemporary dictionary

  • hyperparathyroidism — [ˌhʌɪpəˌparə θʌɪrɔɪdɪz(ə)m] noun Medicine an abnormally high concentration of parathyroid hormone in the blood, resulting in weakening of the bones through loss of calcium. Derivatives hyperparathyroid adjective …   English new terms dictionary

  • hyperparathyroidism — hy·per·par·a·thy·roid·ism …   English syllables

  • hyperparathyroidism — n. excessive secretion of parathyroid hormone, usually due to a small tumour in one of the parathyroid glands. It results in hypercalcaemia. See also: von Recklinghausen s disease …   The new mediacal dictionary

  • hyperparathyroidism — hy•per•par•a•thy•roid•ism [[t]ˌhaɪ pərˌpær əˈθaɪ rɔɪˌdɪz əm[/t]] n. pat overactivity of the parathyroid gland, characterized by muscular weakness and softening of the bones • Etymology: 1915–20 …   From formal English to slang

  • hyperparathyroidism — A condition in which the parathyroid gland (one of four pea sized organs found on the thyroid) makes too much parathyroid hormone. This causes a loss of calcium from the bones and an increased level of calcium in the blood. Symptoms include bone… …   English dictionary of cancer terms

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