{
  "abstract": "Solitary, benign retroperitoneal neurofibromas are exceedingly rare. Our case report highlights a man who presented with left-sided abdominal pain and left lower extremity numbness and weakness. On cross-sectional imaging, a 12.1 cm × 9.8 cm × 7.5 cm lobulated, well-marginated mass emanating from the left iliopsoas muscle at the level of the pelvic rim was visualised. A tissue biopsy suggested the diagnosis of a neurofibroma. The patient underwent resection of a femoral nerve sheath tumor, which resulted in femoral nerve palsy. Subsequent distal reconstructive surgeries and physical therapy resulted in improvement of his postoperative deficits. This is a highly rare case of a giant retroperitoneal solitary neurofibroma of the femoral nerve sheath diagnosed in a young patient.",
  "authors": [
    {
      "affiliations": [
        "General Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland, USA"
      ],
      "name": "Katie Francine Lee"
    },
    {
      "affiliations": [
        "General Surgery, Womack Army Medical Center, Fort Liberty, North Carolina, USA"
      ],
      "name": "Rathnayaka Mudiyanselage Kalpanee Dhanushika Gunasingha"
    },
    {
      "affiliations": [
        "Fairfax Radiology Centers LLC, Fairfax, Virginia, USA"
      ],
      "name": "Jonathan Keung"
    },
    {
      "affiliations": [
        "Department of Orthopedic Surgery, Penn Medicine, Philadelphia, Pennsylvania, USA"
      ],
      "name": "Benjamin Potter"
    },
    {
      "affiliations": [
        "Neurosurgery, Walter Reed National Military Medical Center, Bethesda, Maryland, USA"
      ],
      "name": "Ross Puffer"
    },
    {
      "affiliations": [
        "Surgical Oncology, Walter Reed National Military Medical Center, Bethesda, Maryland, USA"
      ],
      "name": "Michele Gage"
    }
  ],
  "title": "Giant retroperitoneal solitary neurofibroma",
  "uid": "20aa4ffa-e9e1-5d49-8a9e-155c6f7d3e25"
}