title: Malignant peripheral nerve sheath tumor of the oculomotor nerve.
abstract: We present the short-term follow-up magnetic resonance (MR) studies and 1H-MR spectroscopy in a child with malignant peripheral nerve sheath tumor of the oculomotor nerve associated with other less aggressive cranial nerve schwannomas. The tumor revealed perineural extension and diffuse nerve involvement besides rapid growth. 1H-MR spectroscopy was helpful in excluding an intra-axial neoplasm with exophytic growth, mainly due to the absence of creatine and N-acetyl aspartate peaks, and markedly elevated choline peak.
authors.affiliation: Diagnostic Imaging Center, Institute of Oncology, Sremska Kamenica, Serbia and Montenegro.
authors.forename: D
authors.initials: D
authors.lastname: Kozic
authors.forename: M
authors.initials: M
authors.lastname: Nagulic
authors.forename: J
authors.initials: J
authors.lastname: Ostojic
authors.forename: M
authors.initials: M
authors.lastname: Samardzic
authors.forename: V
authors.initials: V
authors.lastname: Milic-Rasic
authors.forename: M Skender
authors.initials: MS
authors.lastname: Gazibara
authors.forename: R Nuri
authors.initials: RN
authors.lastname: Sener
mesh_terms: D001224:Aspartic Acid / Q000031:analogs & derivatives / Q000032:analysis; D002648:Child; D002794:Choline / Q000032:analysis; D003390:Cranial Nerve Neoplasms / Q000175:diagnosis*; D003401:Creatine / Q000032:analysis; D005500:Follow-Up Studies; D006801:Humans; D008279:Magnetic Resonance Imaging; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis; D018317:Nerve Sheath Neoplasms / Q000175:diagnosis*; D009442:Neurilemmoma / Q000175:diagnosis; D015840:Oculomotor Nerve Diseases / Q000175:diagnosis*; D020433:Trigeminal Nerve Diseases / Q000175:diagnosis
chemical_list: D001224:Aspartic Acid; C000179:N-acetylaspartate; D003401:Creatine; D002794:Choline