Urinary tract calculi and nephrocalcinosis in infants and children

Summary 1. Clinical experience with a group of 24 patients showing urinary tract calcium deposits is described. Fifteen had stones in the upper urinary tract, 6 had bladder calculi, and 3 had nephrocalcinosis. 2. Although the etiological basis for the origin of calculi is unknown, the presence of stasis and infection appear to be significant factors in the development of calculi of clinically significant size.