The etiology of ESRD under the age of 20 almost is the inherited kidney disease or congenital disorders of urinary tract. NPHP/ medullary cystic disease includes a group of tubulo- genetic kidney disorders.
NPHP is the cause of 15-20% ESRD in children and adolescents. The extra renal manifestations include: oculomotor Apraxia(Cogan syndrome), mental retardation, retinitis pigmentosa, (Senior-...
