<s>[INST] Usg report says my both kidneys are normal in all respect but have prominent extra renal pelvis. Doctor advised to report after two or three weeks with another usg for further review,treatment.. Kindly advice .some I have back ache. Urine flow is normal .I am taking allusion 10mg, one tablet daily for enlarged prostate treatment. [/INST] Hello and welcome to Chat Doctor. As a Urologist, i can understand your concern. Prominent extra renal pelvis, means the Chat Doctor.  Normally, located completed inside kidneys.There's nothing to worry about it, as this is seen as a normal variant. It doesn't affect the kidneys in any way. The USG scan must be repeated in about 3 months time. If you've any doubts, you can send it as a direct question, to me. </s>