Urolithiasis on non-absorbable suture material: a rare case of bladder stone on polypropylene suture material.

I read the article by Mannan et al with great interest.(1) The authors have presented several interesting cases from Pakistan regarding foreign bodies in the bladder, which is a significant contribution to the literature. However, there were no cases of polypyroplene suture encrustation in bladder in the series. We would like to report a rare case from Turkey, in which a bladder stone was formed by a non-absorbable suture in a female patient with a previous hysterectomy. A 59-year-old woman had a hysterectomy for myoma uteri six years ago. She visited our outpatient clinic with complaints of dysuria, suprapubic pain and gross haematuria for several days. We performed a physical examination as well as laboratory and radiological evaluations. The urine test demonstrated significant cristaluria and microscopic haematuria. In the kidney ureter bladder radiography examination, a milimetric opacity at the bladder zone was observed (Fig. 1) and ultrasonography revealed an echogenity at the roof of the bladder (Fig. 2). In the light of these findings, we reached a diagnosis of bladder stone and scheduled a cystoscopic evaluation. After endoscopic disintegration of the stone, endoscopic lithotripsy was performed with a pneumatic lithotriptor. Following lithotripsy, a non-absorbable suture was seen (Fig. 3). Endoscopic resection was performed, and the nonabsorbable suture was resected using a 24F resectoscope. The patient was discharged on the Day 3 post surgery with a urinary catheter, which was removed on Day 7 post surgery.