SARCOIDOSIS AND HYPERPARATHYROIDISM

This patient presented with hypercalcemia and widespread sarcoidosis and was subsequently found to have a parathyroid adenoma. The clinician, when confronted by a patient who has hypercalcemia and a disease known to produce this abnormality such as sarcoidosis, should consider the possibility of coexistent hyperparathyroidism. In the absence of parathyroid bone disease, this diagnosis must be based on a judicious evaluation of selected laboratory procedures. The merits and limitations of some of these tests, as they pertain to sarcoidosis and hyperparathyroidism, are discussed, and the previously reported cases of coexistent sarcoidosis and hyperparathyroidism are summarized. © 1969.