title: Nuclear magnetic resonance diagnosis of an anaplastic astrocytoma.
abstract: A patient presented with an 8-month history of a progressive left homonymous visual field deficit, left hemiparesis, and a left thalamocortical sensory deficit that was not detectable by repeated conventional neurodiagnostic evaluations. Proton nuclear magnetic resonance (NMR) imaging revealed a right parietal lesion characterized by a prolonged T2 (spin-spin relaxation time). At surgery, the mass proved to be an anaplastic astrocytoma. NMR appears to be more sensitive than x-ray computerized tomography scanning in some patients with malignant gliomas and offers the clinician an additional probe with which to evaluate these patients.
mesh_terms: D001254:Astrocytoma / Q000175:diagnosis* / Q000473:pathology; D001706:Biopsy; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D008875:Middle Aged; D010296:Parietal Lobe / Q000473:pathology*