Tehran University of Medical Sciences Case Reports in Clinical Practice 2538-2683 1 2 2016 09 24 31 33 EN Shahram Gooran Urology Research Center, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran Fateme Guitynavard Urology Research Center, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran Alimohammad Fakhr-Yasseri Urology Research Center, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran Reza Dehghaniathar Urology Research Center, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran 2016 09 13 2016 09 13 Although the presence of intravesical foreign body is not a rare finding, orthopedic screw penetration into the urinary bladder as a complication of the  internal  fixation  of  femoral  neck  fractures  is  extremely  rare.  We describe an 83-year-old man experiencing spontaneous penetration of a cannulated screw into the urinary bladder neck, 16 years after the internal fixation surgery for his femoral neck fracture. https://crcp.tums.ac.ir/index.php/crcp/article/view/81 https://crcp.tums.ac.ir/index.php/crcp/article/download/81/11