Acoustic Neuroma

Acoustic neuroma (vestibular schwannoma) accounts for 75-90% of cerebellopontine angle masses.
Associated with neurofibromatosis (especially if bilateral)
MRI imaging modality of choice
85% vestibular portion of 8th nerve
Iso/hypodense on T1W MRI; hyperintense on T2W MRI
Intensely enhancing post contrast (Gd-DTPA) with low signal centre (this image)
Reference: Danhert W. Radiology Review Manual, Lippincott, Williams & Wilkins.
Credit: Dr Ian Bickle
http://www.radpod.org