<s>[INST] I am 42 yrs old. I had occasional light pain in left renal region and on USG, hydronephrosis was found in left kidney. After CT scan, it was found malrotated left kidney. Doctors suggested DTPA scan and in DTPA scan left kidney is 15% and Rt Kidney is 85% functional. Now doctor suggests, nephrectomy but also said its not urgency. I want to know its prognosis and further course of action. If I do not go for nephrectomy, then what will happen? [/INST] HIThank for asking to HCMI really appreciate your concern, looking to the history given here it all depends upon the severity of clinical complaint I could say that this is not that much need to worry because what the finding suggested is not such disease of anomaly that could put the life in danger, better go for second opinion, hope this information helps you, have a nice day. </s>