ANATOMY

Detailed explanation-1: -Hydronephrosis occurs when a kidney has an excess of fluid due to a backup of urine, often caused by an obstruction in the upper part of the urinary tract.

Detailed explanation-2: -Hydronephrosis occurs when there is either a blockage of the outflow of urine, or reverse flow of urine already in the bladder (called reflux) that can cause the renal pelvis to become enlarged. Hydronephrosis may or may not cause symptoms.

Detailed explanation-3: -Hydronephrosis is a condition where one or both kidneys become stretched and swollen as the result of a build-up of urine inside them. It can affect people of any age and is sometimes spotted in unborn babies during routine pregnancy ultrasound scans.

Detailed explanation-4: -Hydronephrosis in newborns is enlargement, or dilation, of the renal pelvis-the basin in the central part of the kidney where urine collects. Hydronephrosis can occur in one or both kidneys. This condition is often diagnosed before birth during a prenatal ultrasound.

Detailed explanation-5: -What Is Nephromegaly? Nephromegaly is a process in which one or both kidneys become enlarged. Kidney enlargement can occur at any age and can affect the kidneys of prenatal infants as well as children and adults.