Jackstone in the Kidney: An Unusual Calculus

Figure 1

(a) X-ray: typical jackstone in the right kidney. (b) Reconstructed image of noncontrast computerized tomography (NCCT) confirming the presence of jackstone. (c) NCCT showing the right renal jackstone with mild hydronephrosis and no proximal hydroureter. (d) Endoscopic images showing a jackstone.

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