ABSTRACT Introduction We present the case of a 73-year-old man who underwent single port robotic removal of a retained Inflatable Penile Prosthesis (IPP) reservoir with intravesical erosion and repair of an associated bladder fistula. The patient had a 3-piece IPP placed in 2014 for erectile dysfunction after radical prostatectomy for prostate cancer. He underwent device explant two years later for infection, at which time the IPP reservoir was “drained and retained”. He developed re-infection one year later and was again taken to the operating room; however, surgery was aborted due to vascular injuries. He presented to us for evaluation of dysuria and gross hematuria six years after initial IPP placement. Work-up with CT imaging and cystoscopy demonstrated intravesical erosion of the retained reservoir. Objective We aim to provide a step-by-step video demonstration of our technique for single port robotic-assisted removal of the eroded penile prosthesis reservoir and repair of an associated bladder fistula. Methods Procedures were performed using the da Vinci SP single port robotic system. The SP robot port was placed through a 3 cm incision superior to the umbilicus, and an additional 12 mm assistant port was placed in the Right Lower Quadrant (RLQ). The peritoneum was incised anteriorly lateral to the medial umbilical ligament, and the space of Retzius was developed by sharp and blunt dissection through densely adherent tissue planes. The pseudocapsule surrounding the eroded reservoir was incised, and the exposed reservoir was removed. Two fistulous tracts identified between the pseudocapsule and bladder were circumferentially excised, and the resultant bladder wall defect was repaired in a single layer with running 3-0 V-Loc suture. A drain was placed alongside the bladder repair and externalized through the RLQ assistant port. Results The patient tolerated these procedures well and without complications. He was admitted for routine postoperative observation overnight after surgery. On postoperative day one, the drain was removed, and the patient was discharged home with the Foley catheter remaining in place. At 2-week follow-up, the patient was recovering well and a cystogram was obtained showing no leaks, and the Foley catheter was removed. Conclusions This surgical case report demonstrates the feasibility and safety of performing removal of an eroded IPP reservoir through a minimally invasive approach with the da Vinci SP surgical system. The accompanying video provides a step-by-step demonstration of our technique. Disclosure No