The vestibulocochlear nerve, with an emphasis on the normal and disease internal auditory canal and cerebellopontine
8-mm enhancing lesion involving the right cerebellopontine
angle with extension into the right internal auditory canal and widening of the canal (figure 1).
Tokyo) introduce, describe, and promote the retrosigmoid approach not only for otologists but for any surgeon dealing with pathologies of the cerebellopontine
On MRI scan, performed 8 weeks after admission, the brain abscess located in the right cerebellopontine
angle had reached a size of 4 cln, leading to a rise of intracranial pressure that could not be controlled by intravenous administration of mannitol and dexamethasone.
Vascular origin of cerebellopontine
The facial nerve may be purposefully or inadvertently cut during surgery in the cerebellopontine
These lesions account for 8 to 10% of all intracranial tumors and more than 90% of all cerebellopontine
No evidence of mass, signal abnormality, or pathological contrast enhancement within the cerebellopontine
angles or membranous labyrinths was identified.
33) Clear cell meningiomas are often found in the cerebellopontine
angle and the cauda equina.
28] Plaques, seen by autopsy and on surgical exploration of the cerebellopontine
angle, at the trigeminal nerve root, suggest that a destructive lesion at the nerve root entry zone of the trigeminal nerve is necessary for the relief of pain in patients with trigeminal neuralgia secondary to MS.
6) Intracranial arachnoid cysts are most commonly found in the middle cranial fossa (50% to 60%), the parasellar region (10% to 15%), the quadrigeminal plate cisterns (10%), the cerebellopontine
angle (5% to 10%), the supracerebellar cistern (5%), and the cisterna magna (5%).
Amyloid presenting as a tumorlike mass has been reported in the cerebral hemispheres in patients ranging in age from 28 to 60 years, including the temporal (45,46) and occipital lobes, (46,47) and also the cerebellopontine
Despite this high percentage, extension to the cerebellopontine
angle is rare.
Meningiomas, particularly the fibroblastic type, may be difficult to distinguish from schwannomas with routine H&E-stained sections, especially when located in the cerebellopontine
angles and intradural, extramedullary regions of spinal canal.
Cholesterol granuloma of the cerebellopontine