PMC5969513_01
Initial KUB with a right iliac crest calcification (arrow) and a left lower pole calcification. KUB = kidney, ureter, and bladder radiograph.
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The initial abdominal plain X-ray (kidney, ureter, and bladder radiograph [KUB]) showed a left lower pole calcification and a 1.5 cm calcification on the iliac crest (Fig. 1).
Initial coronal noncontrast CT scan image showing a 1.8 cm midureteral stone, right hydroureteronephrosis proximal to the stone, and thin right renal cortex.
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A noncontrast CT of the abdomen and pelvis revealed a 1.8 cm right midureteral stone (1288 HU) with proximal hydroureteronephrosis, a thin right renal cortex, two right lower pole stones 5 mm each (Fig. 2).
Initial sagittal noncontrast CT scan image showing an appendiceal mucocele compressing the right ureter below the midureteral stone.
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This was thought to be an appendiceal mucocele compressing the right mid ureter below the midureteral stone (Fig. 3).
Coronal noncontrast CT scan image postendoscopic removal of the impacted right midureteral stone demonstrating residual chronic right hydroureteronephrosis and a left lower pole caliceal stone.
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Six weeks later, a triphasic CT scan showed stone-free status on the right side with residual mild right hydroureteronephrosis and a left lower pole caliceal stone (Fig. 4).