A good representative example of the renal caliceal anatomy of a horseshoe kidney

- A 30-year-old female with a horseshoe kidney and multiple stones underwent percutaneous miniaturized nephrolithotomy. We can see the typical renal caliceal anatomy here.

• UPJ: narrowing (w/ or wo bullous edema), abnormal location

• hydronephrosis, easier access to the upper pole calyx

• multiple, very hard stones

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There is another case of horseshoe kidney of Brian Eisner of MGH in Boston. [twitter @BEkidneystone] Do you feel the similarities?