Hematuria revealing primary hyperparathyroidism.

Background. - Hematuria rarely reveals primary hyperparathyroidism in the c hild. Case report. - A 10-year-old boy presented with gross hematuria and urolith iasis. Biological findings showed hypercalcemia and hypercalciuria. Initiai ly, parathormone plasma levels remained within normal range, but raised aft er a few months and at that time, ultrasound scan examination showed a para thyroid adenoma. Nevertheless, two surgical explorations were necessary to cure hypercalcemia and hyperparathyroidism. Histological aspects of parathy roid adenoma were not found on pathological examination. Conclusion. - Symptomatic hypercalciuria may be the first symptom revealing primary hyperparathyroidism in children. Surgical treatment remains diffic ult in such a case. (C) 1999 Elsevier, Paris.