Les calculs coralliformes sont exceptionnels chez le nourrisson. Nous rapportons le cas d'un calcul coralliforme associe a un exces d'apport calcique lie a la prise exclusive d'eau Hepar(R).Observation. - Chez un nourrisson de huit mois une radiographie de l'abdomen realisee pour des signes urinaires repetes a revele un calcul coralliforme droit. L'interrogatoire a montre que son regime alimentaire avait comporte jusqu'a plus de quatre fois les apports recommandes en calcium (1 750<space>mg/j au lieu de 400<space>mg/j) en raison d'une utilisation exclusive d'eau Hepar(R). Celle-ci avait ete supprimee un mois auparavant. Une supplementation excessive en vitamine<space>D (1 480<space>U/j) etait alors associee. Les examens biologiques etaient normaux. Le traitement chirurgical a associe une pyelolithotomie droite et trois cures de lithotritie extracorporelle. Un episode infectieux postoperatoire a evolue favorablement apres une antibiotherapie adaptee.Conclusion. - Ce calcul coralliforme constitue le deuxieme cas rapporte de complication associee a la prise exclusive d'eau minerale Hepar(R) au long cours chez un nourrisson. Sa formation a vraisemblablement ete favorisee par des doses excessives de vitamine<space>D. Cette observation souligne le danger de l'utilisation exclusive de certaines eaux fortement mineralisees.
Staghorn lithiases in the infant are rare. We report a staghorn lithiasis related to high calcium intake due to the exclusive use of the mineral water Hepar(R).Case report. - In an eight-month-old infant, an abdominal film performed for repeated urinary symptoms showed a right-sided staghorn lithiasis. Past history revealed that his diet had contained as high as four times the recommended daily intake for calcium (1,750<space>mg) related to the exclusive use of Hepar(R) mineral water. The latter had been discontinued one month prior to admission. Excessive doses of vitamin D (1,480<space>U/day) were given at this time. Blood tests were normal. Treatment combined surgical removal of the stone by right pyelolithotomy, and three extracorporeal lithotrity courses. A postoperative infection had a simple course after antibiotics.Conclusion. - This staghorn lithiasis is the second case report of complications associated with long-term exclusive intake of Hepar(R) mineral water in an infant. It has been likely favored by excessive doses of vitamin D. It emphasizes the danger of the exclusive use of high-calcium mineral water.