title: Neurofibromatosis presenting as an asymptomatic abdominal mass.
mesh_terms: D002648:Child; D004428:Ear Neoplasms / Q000175:diagnosis; D005260:Female; D006801:Humans; D009456:Neurofibromatosis 1 / Q000175:diagnosis*; D010859:Pigmentation Disorders / Q000175:diagnosis; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*; D014463:Ultrasonography