cerebellopontine angle tumors

The cerebellopontine angle is the junction of the medulla , pons , and cerebellum . CN VII and VIII are found there .
Five brain tumors , including a cyst , are often located in the cerebellopontine angle cistern . Remember the acronym SAME :
Schwanoma 75%
Arachnoid cyst 1%
Meningioma 10%
Ependymoma 1%
Epidermoid 5%
The percentages refer to cerebellopontine tumors