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Doctor insights on: Kidney Dilation

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Can anyone have a sonogram showing suspected kidney dilation in their fetus?

Can anyone have a sonogram showing suspected kidney dilation in their fetus?

0.5-1% Pregnancies: Kidney dilation (hydronephrosis, renal pyelectasis) is a common us finding noted in up to 1% of pregnancies. Often times they amount to nothing but in rare cases they're associated with chromosomal anomalies (down's, t21) or genitourinary problems like kinked valves or cysts. These should be followed up with a 3rd tri us and/or genetic testing. ...Read more

Kidney (Definition)

The kidneys are paired organs that lie on either side of the vertebral column. Part of their critical functions include the excretion of urine and removal of nitrogenous wastes products from the blood. They regulate acid-base, electrolyte, fluid balance and blood pressure. Through hormonal signals, the kidneys control the ...Read more


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One of my baby's kidneys showed dilation. What does that mean?

One of my baby's kidneys showed dilation. What does that mean?

Needs to evaluate: It is not uncommon to find a condition called vesico ureteral reflux or a narrowing of the drainage portion of the kidney as it meets the ureter or so called upj stenosis. Both of these would require a pediatric urology opinion. In the great majority of cases medical treatment and observation over time is all that is required. ...Read more

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Hi, My wife is in her 28th week of pregnancy and recent scan shows problem with the fetus kidneys. One of the kidney has multiple cysts and other kidney shows dilation. The reports says: The fetal right kidney measures 52mm in length, shows dilation of p

Hi, My wife is in her 28th week of pregnancy and recent scan shows problem with the fetus kidneys. One of the kidney has multiple cysts and other kidney shows dilation. The reports says:

The fetal right kidney measures 52mm in length, shows dilation of p

Cystic kidneys: Sounds like either ARPKD ( Autosomal recessive polycystic kidney disease) or renal dysplasia due to obstructive uropathy. Both these conditions are compatible with life depending upon fetal lung maturity. Believe it or not-- you need normal kidneys for lungsto develop in utero. In any case my best advice to you would be to consult with a Pediatric Nephrologist, before the birth of the baby. ...Read more

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Both foetal kidneys show mild dilation of pelvis measuring 4-5 mm showed up in 26 week fetus ultrasound Should i be worried?

Both foetal kidneys show mild dilation of pelvis measuring 4-5 mm showed up in 26 week fetus ultrasound
Should i be worried?

Fetal Kidneys: Would not be worried with mild dilation of fetal kidneys. This is not an uncommon findings, and usually is not significant. However, your doctor may repeat the ultrasound just to be sure. As long as your growth is fine and amniotic fluid is normal, it's not likely anything to be worried about. ...Read more

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Both foetal kidneys show slight pelvic dilations about 0.3 cm and foetal growth is satisfactory. Duration of gestation is 36+3 weeks.Should I be worried ?

Pelvic dilation: Dilation of the pelvis of the kidneys is a fairly common finding and usually is of no significance. It is possible that this represents some sort of uretero-pelvic constriction but if all is otherwise normal in this pregnancy then I would not worry. Ultrasounds after birth can help clarify if this is a problem or not. ...Read more

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Hi I'm 20 weeks and 5 days pregnant I had my second scan on Monday and was told 'lt kidney demonstrates mild pelvicalyceal dilation, with AP renal pel?

Hi I'm 20 weeks and 5 days pregnant I had my second scan on Monday and was told 'lt kidney demonstrates mild pelvicalyceal dilation, with AP renal pel?

Consult: abnormal ultrasound findings are something that you should discuss with your doctor in person. In general the finding of a single anomaly can still be normal, but warrants a more complex discussion with your doctor that includes any serum genetic testing. This is not the end of the world nor anything gravely concerning, but warrant further discussion. best of luck. ...Read more

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I am 23 weeks pregnant and they told me my baby girls kidney is dilated. What are the causes of dilation of kidney and what can be the effects of it?

I am 23 weeks pregnant and they told me my baby girls kidney is dilated. What are the causes of dilation of kidney and what can be the effects of it?

Fetal kidneys: Mild dilation of the kidneys is common in fetuses and generally is not serious. However more extreme degrees can indicate a condition that needs more careful medical attention. So it depends on the degree of dilation whether to become concerned or not. I recommend that you call and ask for more information from your doctor's office or discuss in detail at your next visit. ...Read more

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At 20 week ultrasound, the baby's kidney showed renal pelvis dilation with calyceal dilation at 6 mm for both kidneys. There was no blockage in ureter. Opinions?

At 20 week ultrasound, the baby's kidney showed renal pelvis dilation with calyceal dilation at 6 mm for both kidneys. There was no blockage in ureter. Opinions?

No question here: If you are asking "is there blockage in the ureter?" then the answer is possibly. Significant dilation in early gestation increases this risk. It is important to know that dilation (hydronephrosis) can occur without obstruction as well. If the amniotic fluid is low, see a pediatric urologist for prenatal consultation, particularly if you are having a boy (risk of urethral obstruction is high). ...Read more

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My baby boy had bilat hdn before birth. Now usg shows moderate dilation only in the left kidney. Is it harming him? Can he be ok with time?

My baby boy had bilat hdn before birth. Now usg shows moderate dilation only in the left kidney. Is it harming him? Can he be ok with time?

Yes, it can resolve: Depending on how the rest of the kidney looks, ie whether there is normal growth + surrounding tissue), hydronephrosis of the kidney can resolve. However, it could also get worse if there is obstruction in the ureter (drainage tube). He should be seen by a pediatric urologist and followed with ulstrasound. It is not harmful in and of itself but if the kidney is obstructed it could cause harm. ...Read more