Migrated double J stent
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Pain in both flanks. S/P bilateral DJ stenting.
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Mild hydronephrosis with minimal perinephric and periureteric fat standing is noted bilaterally more on the right side. Right DJ stent is seen in situ. Left DJ stent is migrated and seen lying coiled completely in the urinary bladder. Small calculi are seen at the lower pole calyx of the left kidney. Atheromatous changes are seen in the abdominal aorta and its branches.
DJ stent is a catheter which has its one end in the renal pelvis and other in the urinary bladder and functions to decompress the pelvicalyceal system. In this case, bilateral DJ stents were placed. The one on the right is in situ whereas, the one placed in the left renal system is completely displaced and has migrated in the urinary bladder.