Cerebellopontine cistern

Cerebellopontine Cistern

The Cerebellopontine Cistern (also known as the Cerebellopontine Angle or CPA) is a subarachnoid space in the human brain that houses several important structures and cranial nerves. It is located between the cerebellum and the pons, two major parts of the brain.

File:Cerebellopontine angle.jpg

Cerebellopontine angle

Anatomy

The Cerebellopontine Cistern is a fluid-filled space that is part of the subarachnoid space, which is filled with cerebrospinal fluid (CSF). It is bordered by the cerebellum posteriorly, the pons and medulla oblongata anteriorly, and the petrous part of the temporal bone laterally.

The Cerebellopontine Cistern contains several important structures, including the facial nerve (VII), the vestibulocochlear nerve (VIII), and the anterior inferior cerebellar artery (AICA).

Clinical Significance

Due to its location and the important structures it contains, the Cerebellopontine Cistern is a common site for various neurological disorders. These include acoustic neuromas, meningiomas, and epidermoid cysts.

Magnetic resonance imaging (MRI) is often used to visualize the Cerebellopontine Cistern and diagnose these conditions. Treatment options can include surgery, radiation therapy, and chemotherapy, depending on the specific condition and its severity.

See Also

• Cerebrospinal fluid
• Subarachnoid space
• Cranial nerves
• Acoustic neuroma
• Meningioma

References

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