Genitourinary tract malformation is the most common fetal malformation which is identified   with anomaly scan of  second trimester with incidence of  4   in 1000 pregnancy.
obstructive uropathy is the  most   and need treatment before delivery and follow up after on for prevention of disease.
prenatal  diagnosis improves   outcome of affected child with preventing of renal damage and renal failure.
renal number, size,  echo level of cortex and AP diameter of renal pelvic evaluated. echogenic enlarged  kidneys with normal amniotic fluid or oligohydramnios have multiple etiology with different  prognosis and outcome. sonography algorithm of fetal sonogram of urinary system and association of other system anomaly guided the radiologist to diagnosis of disorder and appropriate medical plan.
we introduce modern ultrasound screening program for detecting genitourinary tract abnormality in first, second and third trimester anomaly scan.