Endocrine Abstracts

Hypercalcemia is a relatively common extrapulmonary manifestation of sarcoidosis. Sarcoidosis-associated hypercalcemia is due to the uncontrolled synthesis of 1,25-dihydroxycholecalciferol and increased intestinal absorption of calcium which usually results in a low serum concertation of parathyroid hormone (PTH). High levels of PTH in patients with hypercalcemia secondary to sarcoidosis is usually an indication of co-existent primary hyperparathyroidism. We present a case of ...