Amyloidoma presenting as a butterfly glioma on positron emission tomography scan and magnetic resonance-spectroscopy: a case report and review of the literature.
OBJECTIVE
Isolated amyloidoma rarely involves the nervous system.


METHODS
We report a patient with progressively worsening triparesis and numbness in his extremities.


RESULTS
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.


CONCLUSIONS
This is the first case of a localized central nervous system vascular amyloid to imitate a butterfly glioma on MRI and PET scan studies.
Sin
Anthony H
AH
Department of Neurosurgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana, USA.
Gonzalez-Toledo
Eduardo
E
Fowler
Marjorie
M
Minagar
Alireza
A
Nanda
Anil
A
D000686:Amyloidosis / Q000175:diagnosis* / Q000503:physiopathology; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000503:physiopathology; D005909:Glioblastoma / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D009682:Magnetic Resonance Spectroscopy / Q000295:instrumentation*; D008297:Male; D008875:Middle Aged; D018908:Muscle Weakness / Q000209:etiology; D049268:Positron-Emission Tomography / Q000295:instrumentation*