Idiopathic Hypercalcuria

Abstract

THE 35 male¶ patients described below illustrate a syndrome characterized by a normal serum calcium level, a low serum phosphorus level and an increased urinary calcium excretion. This dislocation of homeostasis has been brought to our attention in the Kidney Stone Clinic because of associated kidney stones.Hypercalcuria, as emphasized by Flocks,¹ is frequently found in patients with kidney stones. There are many causes of hypercalcuria: hyperparathyroidism; osteoporosis, while the disease is progressing; Cushing's syndrome and during high-dosage ACTH and corticoid therapy; high intake of calcium and administration of vitamin D; sarcoidosis and beryllium poisoning; certain forms of osteomalacia of . . .