Hello, and I hope I can help you today.
The
renal pelvis is the part of the kidney where urine pools before it is sent (via small tubes called the ureters) to the bladder for urination. The baby does normally urinate inside you when the baby is healthy.
Prominent renal pelvis can indicate slow flow of the ureters to the bladder, or narrowing of the
urethra (the tube that leads out of the bladder). It can also be normal and can go away over time.
So normally, if found at 19 weeks, you would be followed by
ultrasound about every month to check the kidneys. If the renal pelvises still look prominent when the baby is full term, the
pediatrician will need to evaluate the baby after birth to make sure it can urinate properly.
But again, most cases like this seen at the anatomy ultrasound go away by the end of
pregnancy.
Either way, the condition does not affect the pregnancy and delivery at all.
I hope I was able to adequately answer your question today and that this information is reassuring to you.
Best wishes,
Dr. Brown