What is the most common cause of hypercalcemia and when is it an unlikely cause?

Updated: Dec 03, 2020
  • Author: Mahendra Agraharkar, MD, MBBS, FACP, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Malignancy is one of the most common causes and must be excluded. Hyperparathyroidism and other causes of hypercalcemia can coexist with malignancy. If calcium levels have been mildly elevated for months or years, malignancy is an unlikely cause.

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