Background:
Intravenous urography (IVU); the oldest imaging method for assessing the upper urinary tract anatomy and function; is now seldom used in the pediatric population. The important concern associated with IVU is the radiation exposure. Due to various reasons, IVU is still widely practiced in pediatrics in Afghanistan. On the other hand, Ultrasonography (USG) is universally accepted as the first-line imaging modality in pediatric uroradiology. It is inexpensive, immediate, painless, radiation-free, non-invasive and widely available.