title: A 23-year-old woman with a pelvic mass studied by ultrasound and computed tomography.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D009455:Neurofibroma / Q000175:diagnosis / Q000000981:diagnostic imaging*; D010524:Peripheral Nervous System Neoplasms / Q000000981:diagnostic imaging*; D013126:Spinal Nerve Roots / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography