Dent disease type 2 due to <i>OCRL1</i> mutation in a boy with rickets

We report a case of an Indian boy who presented with rickets and was thought to have nutritional vitamin D deficiency rickets precipitated by the use of anticonvulsant medications. The presence of proteinuria and lack of normalization of alkaline phosphatase prompted further evaluation which was suggestive of type 2 Dent disease secondary to mutations in the OCRL1 gene. The case highlights the importance of urine routine, a simple yet useful test in the evaluation of rickets.