Idiopathic infantile hypercalcemia or an extrapulmonary complication of tuberculosis?

ABSTRACT

Calcium metabolism disturbances are common in childhood. In infancy, hypercalcemia generally occurs due to hyperparathyroidism, familial hypocalciuric hypercalcemia, subcutaneous fat necrosis, total parenteral nutrition administration, hyperthyroidism, and adrenal insufficiency. Granulomatous disorders such as tuberculosis and sarcoidosis are rarer cause of hypercalcemia. Hypercalcemia outcomes including nephrocalcinosis, brain, eye, artery calcifications and encephalopathic features are life-threatening. We report a seven-month-old girl with miliary tuberculosis who presented with severe hypercalcemia.