A Forgotten Double-J Ureteric Stent as the Core of a Bladder Stone: A Case Report and Literature Review

Objective:Unusual clinical course Background:Double-J (D-J) ureteric stents are widely applied in urological operations as they play a vital role in maintaining postoperative functionality of the patient's urinary system and thereby accelerating recovery.D-J stent encrustation may occur due to prolonged retention and lead to secondary complications.We report the case of a forgotten D-J stent that gradually formed into a bladder stone. Case Report:A 54-year-old man was referred to the Urology Department due to intermittent hematuria, left flank pain, and lower urinary tract symptoms that persisted for 2 weeks.His history was significant for undergoing left ureterolithotripsy followed by the implantation of an ipsilateral D-J stents 2 years ago in a local hospital.The patient did not follow-up regularly or actively seek medical attention for his urinary tract symptoms.Computed tomographic urography revealed a hyperdense tubular object protruding from the left distal ureter to the bladder.The patient underwent cystolithotripsy, left ureteric stent removal, and left ureteroscopy to clear away the bladder stone and its D-J stent core. Conclusions:Formation of bladder stones secondary to prolonged indwelling D-J stent and its encrustation is not uncommon in developing countries where the level of public education is low.Prompt D-J stent removal can prevent complications associated with its retention and avoid unnecessary secondary procedures.Endoscopic urologic procedures are safe and feasible management options, and doctor-to-patient communication is vital for a better prognosis.