Endocrine Abstracts

Introduction: Mild hypercalcaemia can occur in patients with Graves’ disease. Postulated mechanisms include increased bone resorption and mobilisation of calcium from the bones in response to increased interleukin-6 and catecholamine levels. The coexistence of primary hyperparathyroidism and Graves’ disease is rare. Hypercalcaemia with suppressed or unsuppressed parathyroid hormone levels should prompt a search for non-parathyroid or parathyroid causes, respectively....