Hypercalcemia and nephrocalcinosis in patients with congenital lactase deficiency.

  title={Hypercalcemia and nephrocalcinosis in patients with congenital lactase deficiency.},
  author={Timo Saarela and Seppo Simil{\"a} and Maila Koivisto},
  journal={The Journal of pediatrics},
  volume={127 6},
We describe 11 infants with congenital lactase deficiency, whose age at diagnosis varied from 6 to 88 days. At the time of admission, 7 of 10 infants had hypercalcemia. Five of the seven infants for whom renal ultrasonography was performed at the time of diagnosis had medullary nephrocalcinosis. Hypercalcemia ceased within a week of the start of a lactose-free diet. At the time of reevaluation, at the ages of 2 to 10 years, one of the patients still had hypercalciuria and nephrocalcinosis was… CONTINUE READING

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