Jon I. Einarsson, MD, MPH, Director of Minimally Invasive Gynecologic Surgery at Brigham and Women’s Hospital, performs a procedure for laparoscopic treatment of severe endometriosis on a 31 year old female patient with severe endometriosis, pelvic pain, and intermittent left-sided hydronephrosis (swelling of the kidney due to urine backup). Patient also with severely fixed pelvis and desires a pregnancy.