Large renal calculus

Stones or calculi as they are known in medical parlance are present in both kidneys (see ultrasound images above). The right kidney shows particularly large stones filling the collecting system in the upper and lower halves ie: the renal calyces. An Xray would help determine (for academics) if these calculi in the right kidney form what is called a staghorn calculus..a single large stone that fills up the entire kidney. Staghorn or not, this patient needs urgent medical attention, maybe surgery would be the better option.
See: http://www.ultrasound-images.com/renal-calculi.htm for more on this topic.