A case of ovarian dermoid cyst invading the posterior bladder wall with pilimiction and recurrent bladder stone was presented. Fifty-four years old female patient had a symptoms of frequency, dysuria, hematuria and pilimiction intermittently She had received cystolithotomies and litholapaxy due to recurrent bladder stones for 3 times in other hospitals Cystoscopic examination revealed elevated flat mass on the base of bladder and hairs outgrowing a from the surface of mass. Also two-large bladder stones were seen at cystoscopy. So, recurrent bladder stones caused by the hairs growing from invading dermoid cyst was diagnosed. Removal of bladder stone, partial cystectomy and left oophorectomy were performed.
Cystectomy ; Cystoscopy ; Dermoid Cyst* ; Dysuria ; Female ; Hair ; Hematuria ; Humans ; Lithotripsy ; Ovariectomy ; Ovary ; Urinary Bladder Calculi* ; Urinary Bladder*