Mallouh C
Department of Urology, New York Medical College, Valhalla.
Int Urol Nephrol. 1993;25(3):235-7.
A 14-year-old boy had multiple prostatic calculi and marked ballooning of the prostatic urethra during micturition secondary to a type III urethral valve. There were minimal changes in the bladder and upper tract. Resection of the valve corrected the patient's symptoms and signs.