Bladder Endometrioma

Abstract

A 33-year-old woman presented for evaluation after recurrent episodes of gross hematuria. She denied any clinically significant voiding symptoms or history of urinary tract infection. She had no personal or family history of genitourinary malignant tumors. Medications included a multivitamin and oral contraceptive therapy. She noted that the hematuria occurred primarily during menstruation. A computed tomography scan revealed a 3 cm mass in the bladder (Figure A). Cystoscopy confirmed a round lesion along the posterior base of the bladder with focal areas of hemorrhage and blue discoloration (Figure B).