The kidney stone is located in the back of the left kidney. 0.5cm is a small stone, but certainly big enough to cause symptoms.
If it was big enough to cause a urinary obstruction, there would have been swelling of the kidney that would be seen on the CT scan.
Most kidney stones pass on their own, however I would be evaluated by a physician to ensure no other intervention needs to be done for the stone.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
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