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Cerebellopontine angle mass

 

The cerebellopontine angle (CPA) is a relatively frequent site of intracranial masses, many of which are relatively specific for the region. 

It is worth dividing cerebellopontine angle masses into three groups, based on imaging characteristics. 

  1. enhancing masses
  2. masses with high T1 signal on MRI
  3. masses with CSF intensity / density

Alternativel quick mnemonic to remember the common entities affecting the cerebellopontine angle (CPA) is AMEN or SAME

Enhancing mass

 

High T1 signal mass

CSF density mass

Other masses

Many other masses can present at or around the cerebellopontine angle. They include:

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