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Figure 3 : CT renal colic. (a, c) Axial and (b, d) coronal non-IV contrast MDCT showing mild right hydronephrosis and proximal hydroureter secondary to renal calculus (white arrow) in the mid-right ureter

Figure 3 : CT renal colic. (a, c) Axial and (b, d) coronal non-IV contrast MDCT showing mild right hydronephrosis and proximal hydroureter secondary to renal calculus (white arrow) in the mid-right ureter