Archivos de Pediatría del Uruguay
Print version ISSN 0004-0584
Summary Rickets is a disease which disturbs normal bone formation through different methods, like vitamin D deficiency, malabsorption, chronic renal disease, metaphisary dysplasia, low phosphorus and resistant rickets. A two and a half year old patient with active rickets who had asymptomatic severe hypocalcemia, normal phosphorus level, high alkaline phosphatase and high parathyroid hormone and normal serum 25- hydroxycholecalciferol. Probable vitamin D dependence type I rickets was diagnosed due to her rapid recovery with the treatment given
Keywords : RICKETS; CALCITRIOL-deficiency; CALCITRIOL-therapeutic use.