This condition is the dilatation of the renal pelvis and calyces with accompanying destruction of the kidney parenchyma. Partial obstruction to the outflow of urine is usually the cause. This condition maybe congenital or acquired.
It may be unilateral or bilateral. Unilateral is encountered when the lesion is somewhere in the ureter, above the level of the urinary bladder. Bilateral hydronephrosis is seen when the obstruction is below the level of the urinary bladder like in stricture of the urethra, BPH and neuromuscular dysfunction of the internal sphincter. Bilateral hydronephrosis can also present when there is bilateral ureteric obstruction.
Read more about Hydronephrosis posted under surgery at The Health Portal
Tags: Hydronephrosis
