RESUMO
Introduction: A ureteral stent is crucial for managing urinary flow obstruction, ureteral reconstructive surgeries, and iatrogenic ureteral injuries. The authors aim to report a case of forgotten double-J stent for 17 years, the longest time reported in literature in a patient with solitary kidney and no typical long-term complications as stones formation and encrustation. Case presentation: A 58-year-old male with chronic kidney disease and solitary left kidney presented with left loin pain. With creatinine higher than baseline (6.2 mg/dl), he reported a neglected double-J stent placed 17 years ago in a different hospital. In addition, non-contrast computed tomography and cystoscopy revealed hydronephrosis, cystitis, and an element of infra-vesical obstruction, evident by high bladder neck. Treatment included left percutaneous nephrostomy, but he was readmitted few weeks later for cystoscopy, ureteroscopy, and a new double-J insertion. Due to worsening renal function, he was readmitted four weeks later for cystoscopic removal of the new double-J stent and Transurethral Resection of the Prostate, after which creatinine returned to baseline. Discussion: Double-J stents are vital in urological procedures, but neglecting their presence can lead to severe complications like encrustations, stone formation, stent fractures, hydronephrosis, infections, and renal function loss. Treatment of long-term complications is difficult and should consider many factors, including the type and severity of associated complications and the patient's preoperative status. Conclusion: Preventing complications from neglected or forgotten double-J stents through patient education and follow-up is crucial, especially in those with solitary functioning kidneys due to the imminent loss of renal function.