URINARY TRACT CALCULI IN CHILDREN<subtitle>Renal and Vesical Calculi in an Eight-Month-Old Child</subtitle>

A REVIEW of the literature reveals a paucity of reports of urinary tract calculi in infants and children, except in autopsy series. Even in these, the incidence is quite low except in certain areas of the world outside the United States. INCIDENCE Thomson,¹in reviewing 2,962 cases of vesical calculus operated on at the Canton Hospital, Canton, China, prior to 1920, found that 25% of the patients were under 10 years of age. Bokay,* in Hungary, collected 1,826 cases of urinary stone in infants and children under 15 years, with 45 being under 1 year of age. In contrast, Hager and Magath,²of the Mayo Clinic, reported 2,195 cases of vesical calculus, of which only 33 (1.63%) were under 15 years of age, and Campbell,³in a series of 15,919 autopsies in children under 15 years of age in the United States, found only an incidence of