Extraction of a giant bladder stone (560 g) in a young female: A case report.

INTRODUCTION AND IMPORTANCE: Giant bladder stones, exceeding 100 g, are rare and typically affect males. This report describes an atypical case of a 35-year-old female with a 560-g bladder stone causing acute kidney injury without evidence of upper urinary tract stones.

CASE PRESENTATION: A 35-year-old female presented with pelvic pain and urinary retention. Comprehensive imaging, including a KUB x-ray and subsequent ultrasound, revealed a giant bladder stone obstructing the ureters and causing bilateral hydronephrosis. Urinalysis showed a severe urinary tract infection. Given the stone's significant size and its firm attachment to the bladder wall, open cystolithotomy was performed. The patient recovered well and was subsequently discharged without postoperative complications.

CLINICAL DISCUSSION: Giant bladder stones are rare in young females. This case highlights the uncommon presentation of a 560-g stone in a female, causing acute kidney injury while there were no upper tract stones detected. The role of urinary tract infection as a contributing factor is explored, although other etiological factors are also considered.

CONCLUSION: Open cystolithotomy proved to be an effective treatment. Postoperative recommendations included dietary modifications to minimize the risk of recurrence. This case expands our knowledge of giant bladder stones in this population.