MR findings of an unusual intracranial neuroma simulating a meningioma.
We report an unusual intracranial neuroma that simulated a meningioma on CT and magnetic resonance imaging. A diagnosis of meningioma was suggested because the tumor was tentorium-based; had enlarged into both the middle and posterior fossae; contained calcification and was homogeneous and densely enhancing on contrast CT; and was isointense with brain on T1- and T2-weighted images. The tumor proved to be a schwannoma with characteristic electron microscopic findings.
Flickinger
F W
FW
Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City 52242.
Yuh
W T
WT
Sato
Y
Y
Hart
M N
MN
D000328:Adult; D001932:Brain Neoplasms / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000175:diagnosis*; D008579:Meningioma / Q000175:diagnosis*; D009463:Neuroma / Q000175:diagnosis*