title: Diffusion-weighted imaging of retroperitoneal malignant peripheral nerve sheath tumor in a patient with neurofibromatosis type 1.
abstract: We present the diffusion-weighted imaging (DWI) findings for a malignant peripheral nerve sheath tumor arising in a retroperitoneal plexiform neurofibroma in a patient with neurofibromatosis type 1. Signal intensity of the malignant area was high on DWI and low on the apparent diffusion coefficient map and differed from findings for the benign area. DWI enabled clear differentiation between malignant and benign areas of the tumor.
authors.affiliation: Department of Radiology, Kanagawa Children's Medical Center, Yokohama, Japan. tniwa@kcmc.jp
authors.forename: Tetsu
authors.initials: T
authors.lastname: Niwa
authors.forename: Noriko
authors.initials: N
authors.lastname: Aida
authors.forename: Kazutoshi
authors.initials: K
authors.lastname: Fujita
authors.forename: Norihiko
authors.initials: N
authors.lastname: Kitagawa
authors.forename: Yukiko
authors.initials: Y
authors.lastname: Sato
authors.forename: Yukichi
authors.initials: Y
authors.lastname: Tanaka
authors.forename: Tomio
authors.initials: T
authors.lastname: Inoue
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D005260:Female; D006801:Humans; D009364:Neoplasm Recurrence, Local; D018317:Nerve Sheath Neoplasms / Q000175:diagnosis* / Q000209:etiology / Q000648:ultrastructure; D009456:Neurofibromatosis 1 / Q000150:complications*; D012086:Reoperation; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000209:etiology / Q000648:ultrastructure