my sons age is 1year radiology report shows there is a difference in the size of the left kidney . the size of the left kidney is measured 7.7cms while the right one is 7.1cms. and the report shows duplex moiety of left kidney with renal pelvic prominence of lower moiety. what does it mean.
Good Day, and thank you for being with Chat Doctor !Your son has a congenital abnormality in his left kidney. It is called a duplicated collecting system meaning other than one tube Chat Doctor.  It will depend on if he has a complete duplication meaning he has two ureters(tube that connects the kidney to the urinary bladder) all the way from the kidney to the bladder or incomplete duplication where the two tubes will fuse somewhere in the middle and would have one insertion to the bladder. When we have a duplicated kidney we call the collecting system in the upper pole of the kidney upper moiety while the lower pole is the lower moiety. Prominence of the lower moiety means that it is more dilated than the upper pole. This means there might be some form of obstruction happening and should be investigated by CTS Can or MRI.  I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications at