Embolization with temporary balloon occlusion of the internal carotid artery and in vivo proton spectroscopy improves radical removal of petrous-tentorial meningioma.
A highly vascular petroclival meningioma supplied by tentorial branches of the internal carotid artery was embolized by temporary balloon occlusion of the parent vessel distal to the tumor, followed by obliteration of the tumor vascularity with polyvinyl alcohol particles. Subsequently, in vivo proton spectroscopy showed necrosis of a large portion of the tumor and helped determine the timing of surgery. Both innovative techniques considerably facilitated the subsequent radical excision of the tumor with no neurological morbidity.
Division of Neurosurgery, Toronto Hospital, University of Toronto, Ontario, Canada.
M
M
Tymianski
R A
RA
Willinsky
C H
CH
Tator
D
D
Mikulis
K G
KG
TerBrugge
L
L
Markson
D000328:Adult; D002533:Cerebral Angiography; D003131:Combined Modality Therapy; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008577:Meningeal Neoplasms / Q000098:blood supply / Q000175:diagnosis / Q000601:surgery*; D008579:Meningioma / Q000098:blood supply / Q000175:diagnosis / Q000601:surgery*; D009336:Necrosis; D009460:Neurologic Examination; D013052:Spectrometry, X-Ray Emission