Hypervitaminosis D Excessive amounts of Vitamin D intake, usually develop fter 1-3 mo of excessive intake Anorexia, irritability, constipation, polydipsia Chemical examination: Hypercalcemia and hypercalciuria radiographs: metastatic calcification and generalized osteopetrosis in long bone Treatment: discontinuing vitamin D intake and decreasing calcium intakeHypervitaminosis D ➢ Excessive amounts of Vitamin D intake, usually develop after 1-3 mo of excessive intake ➢ Anorexia, irritability, constipation, polydipsia ➢ Chemical examination：Hypercalcemia and hypercalciuria ➢ radiographs: metastatic calcification and generalized osteopetrosis in long bone ➢ Treatment: discontinuing vitamin D intake and decreasing calcium intake