Amyloidoma presenting as a butterfly glioma on positron emission tomography scan and magnetic resonance-spectroscopy: a case report and review of the literature
Sin, A.H.; Gonzalez-Toledo, E.; Fowler, M.; Minagar, A.; Nanda, A.
Journal of the Louisiana State Medical Society Official Organ of the Louisiana State Medical Society 160(1): 44-7 49-50
2008
ISSN/ISBN: 0024-6921 PMID: 18669409 Document Number: 616603
Isolated amyloidoma rarely involves the nervous system. We report a patient with progressively worsening triparesis and numbness in his extremities. Magnetic resonance imaging (MRI) of the brain revealed a mass lesion involving both hemispheres, which on positron emission tomography (PET) scan and magnetic resonance-spectroscopy (MR-SPECT) appeared to be a butterfly glioma. However, neuropathological examination revealed a large area with localized vascular amyloidosis. This is the first case of a localized central nervous system vascular amyloid to imitate a butterfly glioma on MRI and PET scan studies.