Cerebellopontine angle cistern
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The cerebellopontine angle cistern, also known as the pontocerebellar cistern, is a triangular CSF-filled subarachnoid cistern that lies between the anterior surface of the cerebellum and the lateral surface of the pons.
Gross anatomy
Boundaries
- superior: tentorium cerebelli
- posterior: anterior surface of cerebellum
- inferior: lower cranial nerves
- anterior: prepontine cistern
- anterolateral: posterior surface of petrous temporal bone, including internal acoustic meatus
- medial: pons
Contents
- CN VII
- CN VIII
- flocculus of the cerebellum
- foramen Luschka of the 4th ventricle
- anterior inferior cerebellar artery (AICA)
Relations
- CN V lies superior to this space
- CN IX, CN X, and CN XI lie inferior
- the middle cerebellar peduncle is inferior
Related pathology
-
cerebellopontine angle masses
- vestibular schwannomas (nearly 80% of all CP angle tumours)
- meningiomas
- epidermoid cysts
- dermoid tumours
- arachnoid cysts
- lipomas
- metastatic tumours
- vascular tumours
-<![endif]--><!--StartFragment-->The <strong>cerebellopontine angle cistern</strong>, also known as the <strong>pontocerebellar cistern</strong>, is a triangular <a href="/articles/cerebrospinal-fluid-1">CSF</a>-filled <a title="Subarachnoid cisterns" href="/articles/subarachnoid-cisterns">subarachnoid cistern</a> that lies between the anterior surface of the <a href="/articles/cerebellum">cerebellum</a> and the lateral surface of the <a href="/articles/pons">pons</a>.</p><h4>Gross anatomy</h4><h5>Boundaries</h5><ul>- +<![endif]--><!--StartFragment-->The <strong>cerebellopontine angle cistern</strong>, also known as the <strong>pontocerebellar cistern</strong>, is a triangular <a href="/articles/cerebrospinal-fluid-1">CSF</a>-filled <a href="/articles/subarachnoid-cisterns">subarachnoid cistern</a> that lies between the anterior surface of the <a href="/articles/cerebellum">cerebellum</a> and the lateral surface of the <a href="/articles/pons">pons</a>.</p><h4>Gross anatomy</h4><h5>Boundaries</h5><ul>
-<a href="/articles/acoustic-neuroma-1">acoustic schwannomas</a> (nearly 80% of all CP angle tumours)</li>- +<a href="/articles/vestibular-schwannoma">vestibular schwannomas</a> (nearly 80% of all CP angle tumours)</li>
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