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Medical terminology · Endocrinology

Hyperparathyroidism

MeSH — National Library of Medicine · Retrieved 2026-10-13

A condition of abnormally elevated output of PARATHYROID HORMONE (or PTH) triggering responses that increase blood CALCIUM. It is characterized by HYPERCALCEMIA and BONE RESORPTION, eventually leading to bone diseases. PRIMARY HYPERPARATHYROIDISM is caused by parathyroid HYPERPLASIA or PARATHYROID NEOPLASMS. SECONDARY HYPERPARATHYROIDISM is increased PTH secretion in response to HYPOCALCEMIA, usually caused by chronic KIDNEY DISEASES.

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Reference details

MeSH descriptor
D006961
Vocabulary edition
2026
Tree positions
C19.642.355

Scope and definition

A condition of abnormally elevated output of PARATHYROID HORMONE (or PTH) triggering responses that increase blood CALCIUM. It is characterized by HYPERCALCEMIA and BONE RESORPTION, eventually leading to bone diseases. PRIMARY HYPERPARATHYROIDISM is caused by parathyroid HYPERPLASIA or PARATHYROID NEOPLASMS. SECONDARY HYPERPARATHYROIDISM is increased PTH secretion in response to HYPOCALCEMIA, usually caused by chronic KIDNEY DISEASES.

Entry terms and synonyms

Hyperparathyroidism

Classification tree positions

C19.642.355

Sources and reuse

Medical vocabulary definition and classification record.
Retrieved: 2026-10-13. Text has been organized for reading; this import has not been independently reviewed by a clinician. It is not individualized medical advice.
Courtesy of the U.S. National Library of Medicine. DrugChat is independent and is not endorsed by NLM.

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