Citation, DOI & case data
Ureteric obstruction secondary to a pelvic tumor
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1. Contrast injection through an 18 gauge needle confirms lower pole calyx puncture.
2. Guidewire inserted through the needle.
3. 9 Fr dilator inserted over the guidewire after removing the needle
4. 8 Fr pigtail drain inserted over guidewire. Contrast injection confirms satisfactory nephrostomy drain postion.