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Figure 3: (a and b) Left kidney not visualized on intravenous urography till 2 h of study. (c) Magnetic resonance urography image (T2-weighted image) showing pelviureteric junction obstruction in the left kidney. (d) Magnetic resonance urography image (postcontrast T1-weighted image) shows nonexcretion of contrast on the left side

Figure 3: (a and b) Left kidney not visualized on intravenous urography till 2 h of study. (c) Magnetic resonance urography image (T2-weighted image) showing pelviureteric junction obstruction in the left kidney. (d) Magnetic resonance urography image (postcontrast T1-weighted image) shows nonexcretion of contrast on the left side