Wednesday, August 11, 2010

Extrarenal pelvis:

This adult patient shows a ballooning of the pelvis (P) of the left kidney (see ultrasound images above). A major portion of the renal pelvis lies outside the renal sinus, a condition called extrarenal pelvis. The transverse section image (lower image), brings out the lesion clearly. The extrarenal pelvis is a normal variant and needs no specific treatment. However, in this case, the calyces of the left kidney show mild ballooning suggesting obstructive changes which require further radiological study.


  1. I just turned one of these in and called it hydronephrosis, happy to place my calipers on both sides to show how big it was. I got the Rad report back and found out how wrong I was. That's what led me here (google search).

    Thanks for posting.

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