Horseshoe kidney

Case contributed by Naim Qaqish


Follow up on renal stones.

Patient Data

Age: 65 years
Gender: Male

Urinary tract


Horseshoe kidney with a right-sided double-J catheter in position.

Multiple stones are seen in the right middle and lower collecting system the largest measuring around 10 mm.

There is around 6 x 4 mm right distal ureteric stone along the course of the catheter.

Multiple stones are also seen in the left calyceal system the largest measuring around 10 mm.

There is moderate left-sided hydronephrosis and hydroureter without evidence of left ureteric stones.

Underfilled urinary bladder with Foley's catheter in satisfactory position and containing small gas pocket.

Mild prostatic enlargement is noted.



Double-J stents are seen bilaterally in a good position.

Multiple faint radiopaque stones are seen in the right paravertebral region, ranging in size between 2.5 and 8 mm.

These radio-opaque shadows are seen medial to renal shadow present stones in a horseshoe kidney.

Few faint stones are seen also on the left side, the largest measures about 9 mm.

Case Discussion

This case illustrates the typical appearance of horseshoe kidney on CT scan. KUB depicted radio-opaque shadows that do not follow the normal course of the urinary tract. 

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