Practice Tool: Prenatal and Postnatal Hydronephrosis Diagnosis and Management
Hydronephrosis, also known as urinary tract dilation (UTD), denotes dilation of the renal collecting system. Hydroureteronephrosis is the term used when the pathology extends to the level of the bladder, suggestive of ureteral dilation also. It can affect fetuses (prenatal) and babies (postnatal) and is the most common abnormality found on prenatal ultrasounds.