Pelvic neurofibroma in a patient presenting with pelvic pain and urinary frequency: A case report

Pelvic neurofibromas are benign and uncommon retroperitoneal masses. They arise from Schwann cells. One of the most common types of these benign tumors is intraneural neurofibromas, which are solitary, sporadic, and not associated with neurofibromatosis type 1. Here we discuss a case of pelvic neurofibroma in a 20-year-old male who presented with chronic pelvic pain. He had no positive family history of genetic disorders. On physical exam, just a partly firm mass without mobility in the hypogastric region was detected. Ultrasound and Computed tomography scan showed pelvic retroperitoneal mass superior to the urinary bladder with extension to the rectovesical pouch and invasion of the posterior wall and dome of the bladder. The patient underwent laparotomy revealing an infiltrative retroperitoneal mass with the invasion of the posterior wall, dome, and trigone of the bladder. Histopathological findings showed neurofibroma.