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1.The report suggest there is extra
renal pelvis - which means the pelvis is seen dilated but no obvious cause was identified.
2.In this case the possibilities can be extra-renal pelvis. But i think you need to get more test to identify the underlying cause.
3.I would suspect any uterine lesion causing the
ureteral obstruction and causing the dilated pelvis and calyx.
4.
Ultrasound itself is not enough to evaluate the condition. First KFT -
kidney function test, then IVP to evaluate the kidney function and ureters status.
5.
MRI will be best to evaluate and delineate the anatomical delineation and underlying cause.
Good luck.
Hope i have answered your query,
any thing to ask ? do not hesitate to ask.
http://doctor.healthcaremagic.com/doctors/dr-ganesh/62888