Pelvic plexiform neurofibroma during bowel/bladder dysfunction in an NF1 pediatric patient: A case report

Individuals with Neurofibromatosis I may develop plexiform neurofibromas throughout the body, however they are rarely seen in the pelvis. We present a 15-year-old patient with NF1 with a large unresectable neurofibroma located between the prostate and bladder discovered incidentally on renal/bladder ultrasound during the evaluation of bowel/bladder dysfunction. Despite the extensive nature of the mass, the patient presented with minimal symptoms and the lesion was thought to be stool or enlarged prostate on subsequent evaluations. Urologists should be aware of NF1 related pelvic masses in the evaluation of bowel bladder dysfunction and specify NF1 on radiologic requisitions.