Acute Respiratory Distress Syndrome Induced by Parathyroid Storm.

Hypercalcemic crisis associated with the development of acute respiratory distress syndrome (ARDS) has been rarely documented in the literature. Most cases have been described in patients suffering from malignancies or renal failure with the presence of metastatic calcifications being a prominent feature. Only three cases of ARDS have been reported to date in patients with hypercalcemic crisis due to primary hyperparathyroidism (PHPT). Herein, we report a 72-year-old patient with PHPT that presented with severe hypercalcemic crisis and developed ARDS. He had mild chronic kidney disease and at presentation he had extremely high levels of serum calcium (22.5 mg/dl) and parathormone (3822 pg/ml). After receiving medical treatment for hypercalcemia and the initiation of hemodialysis, he developed ARDS with a fatal outcome, without the presence of pancreatitis, sepsis or heart failure. Although very rare, ARDS should be taken into account as a possible complication of parathyroid crisis, especially in patients with excessive calcium and parathormone levels.