摘要
BACKGROUND Upper tract urothelial carcinoma(UTUC)representing only a small fraction of all urothelial tumors.It predominantly affects the renal pelvis in men,often coexisting with bladder carcinoma.UTUC displays a more aggressive genetic profile compared to bladder neoplasms,with the majority of patients presenting with advanced disease.Histologically,about a quarter of UTUC cases exhibit high-grade subtypes,associated with a worse prognosis.Tobacco use and past exposure to aromatic amines are significant risk factors for UTUC.Imaging modalities such as Uro-computed tomography and magnetic resonance imaging play crucial roles in diagnosis.Ureterorenoscopy is vital for direct visualization and biopsy sampling,but its limited sampling capacity presents challenges in determining tumor depth and staging.Traditionally,nephroureterectomy with bladder cuff excision has been the gold-standard treatment for UTUC.Endoscopic conservative treatment has recently emerged as a viable option for selected patients,offering comparable oncological outcomes to radical surgery.Percutaneous access is also feasible for larger intrarenal tumors.CASE SUMMARY We present a case of an 84-year-old woman who underwent percutaneous endoscopic excision of a renal pelvis neoplasm using the Tullio laser.Despite successful tumor removal,the patient experienced a postoperative complication with abdominal fluid leakage.Conservative management effectively resolved the complication.Given the patient's age and refusal for radical surgery,the conservative approach proved to be a valid therapeutic choice.CONCLUSION Overall,UTUC remains a diagnostic and therapeutic challenge due to its rarity.However,advances in endoscopic and percutaneous techniques provide valuable alternatives for selected patients,warranting further exploration in this evolving field.
