What Causes Hypercalcemia?

Causes of primary hyperparathyroidism

- Parathyroid adenoma

- Parathyroid hyperplasia

- Parathyroid carcinoma

Causes of secondary hyperparathyroidism

- Vitamin D deficiency

- Chronic renal failure

- Hypomagnesemia

- Fanconi syndrome

- Pseudohypoparathyroidism

Causes of tertiary hyperparathyroidism

- Long-standing secondary hyperparathyroidism

Rare causes of hypercalcemia

- Milk-alkali syndrome

- Sarcoidosis

- Addison disease

- Multiple myeloma

- Leukemia

- Lymphoma

- Paget disease of bone

- Acromegaly

- Thyrotoxicosis