<prompt> A child presented with polyuria, polydypria, fever, clinical features of rickets, slit lamp examination shows the following,what is the probable diagnosis?Alport syndromeHyper calcemiaCystinosisDent disease  <response>: A child presented with polyuria, polydypria, growth failure rickets, fever and decreased pigmentaion of skin, blonde hair, photophobia.On slit lamp examination, cysteine crystal can be seen in cornea. 