Hypercalcaemic Crisis Due to Primary Hyperparathyroidism: Report of Two Cases

A hypercalcaemic crisis, also called para thyrotoxicosis, hyper parathyroid crisis or parathyroid storm, is a complication of primary hyperparathyroidism (PHPT) and an endocrinology emergency that can have dramatic or even fatal consequences if it is not recognised and treated in time. Two cases presented in the emergency department with critical hypercalcaemic symptoms and severe elevation of serum calcium and parathyroid hormone levels, consistent with a hypercalcaemic crisis. The first case, a 16-year-old female patient, had imaging data that highlighted a single right inferior parathyroid adenoma and a targeted surgical approach was used. The second case, a 35-year-old man was admitted for abdominal pain, poor appetite, nausea and vomiting. Laboratory tests revealed severe hypercalcaemia, hypophosphatemia and an increased serum iPth level. There was no correlation between scintigraphy and ultrasonography, and a bilateral exploration of the neck was preferred, resulting in the exposure of two parathyroid adenomas. The patients were referred for surgery and recovery in both cases was uneventful. These cases support the evidence that surgery remains the best approach for patients with a hypercalcaemic crisis of hyperparathyroidism origin, ensuring the rapid improvement of both the symptomatology and biochemical alterations of this critical disease.