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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Does Bilateral Prominent Renal Pelvis During 36 Weeks Of Pregnancy Mean?

Hi Doctor, My pregnant wife went ultra sound scan at 36-37 week. Scan report is normal in all aspects expect they have highlighted this line Bilateral prominent renal pevis of 4.00mm size see. UB normally distended. There are no other obvious anomalies. For followup . Is there anything wrong with this statement?
Mon, 17 Sep 2018
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General & Family Physician 's  Response
Hello,

The dilatation of renal pelvis indicates collection of urine in the kidneys to increase its size.

Many times it is a normal finding when in the following scan it may be of normal size. So, please don't be scared, go for follow-up scan as advised.

Persistent enlarged pelvises indicate possibility of some renal (kidney) malformation. If it is recognized earlier then baby can be observed and treated accordingly as per need.

Please understand that follow-up scan was advised with size of 4 mm pelvis just from preventive point of view (so that due attention is given and if at all there is any problem it should be diagnosed earliest). Actually the abnormal size of renal pelvis at 36 weeks of pregnancy is >7mm. So rest and relax.

Hope I have answered your query. Let me know if I can assist you further.

Regards,
Dr. Vasudha Jayant Athavale
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What Does Bilateral Prominent Renal Pelvis During 36 Weeks Of Pregnancy Mean?

Hello, The dilatation of renal pelvis indicates collection of urine in the kidneys to increase its size. Many times it is a normal finding when in the following scan it may be of normal size. So, please don t be scared, go for follow-up scan as advised. Persistent enlarged pelvises indicate possibility of some renal (kidney) malformation. If it is recognized earlier then baby can be observed and treated accordingly as per need. Please understand that follow-up scan was advised with size of 4 mm pelvis just from preventive point of view (so that due attention is given and if at all there is any problem it should be diagnosed earliest). Actually the abnormal size of renal pelvis at 36 weeks of pregnancy is 7mm. So rest and relax. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Vasudha Jayant Athavale