Cystinotic rickets treated with vitamin D metabolites.

Abstract
A 22 mo. old girl with cystinotic rickets was given 1 .mu.g 1,25-dihydroxycholecalciferol (1,25-DHCC) daily in addition to standard treatment. Her rickets healed and linear growth rate appeared to increase. It was suggested that the effect of 1,25-DHCC and its metabolically active analogs on cystinotic rickets should be further studied.