Translation:

• Medical Institution: Shanghai Branch
• Surgeon: Professor Lü Xiangguo
• Patient Condition: A 44-year-old female with left ureteral stricture and hydronephrosis complicated by previous hysterectomy and oophorectomy.
• Surgical Background: Failed prior Double J stent placement, requiring further interventional treatment.
• Surgical Method: Retrograde pyelography (for stricture localization) + balloon dilation + Ureteral Stent System placement.
• Surgical Guarantee: Dual guidance under fluoroscopy and endoscopic direct vision.
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