PMC5899280_01
Retrograde pyelogram in 2016, during stent exchange. The guidewire is coiled in the dilated upper pole calix:this is where the proximal stent coil continues to be placed. Note the severely contracted renal pelvis. An embolization coil (arrow) is present at the site of the failed 1992 endopyelotomy.
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During ureteroscopy, it was noted that part of the endovascular coil that had been deployed previously had eroded into the collecting system along the medial aspect of the UPJ (Fig. 1).
Patient's creatinine trend for the past 15 years. *Creatinine at the time of right nephrectomy.
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Furthermore, his renal function has remained stable with creatinine ranging from 1.6 to 2.0 for the past 15 years (Fig. 2).