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CT of a ureteral stone

CT of a ureteral stone
Ureterolithiasis with obstruction. Image of the abdomen from a CT with intravenous contrast shows a stone (arrow) in the proximal left ureter with slight delayed enhancement and mild hydronephrosis of the left kidney. The right kidney is normal with high density contrast excretion in the right ureter (arrowhead).
CT: computed tomography.
Courtesy of Jonathan Kruskal, MD.
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