Cerebellopontine angle cyst

A CSF density lesion in the right cerebellopontine angle, with moderate local mass effect with mild displacement of the brainstem but no effacement of the fourth ventricle.

The cerebellopontine angle CPA is a rare location for arachnoid cysts, and fewer than 35 cases of arachnoid cysts occurring in the CPA have been reported in the literature. We discuss the diagnosis, radiographic imaging, and management of CPA arachnoid cysts. Arachnoid cysts often present with only subtle signs or symptoms, such as headache or ataxia. Our case involves a middle-aged, female patient, who presented with unilateral tinnitus, unsteadiness, and headaches associated with nausea and vomiting. On clinical examination there were no cerebellar signs or cranial neuropathy; she did, however, suffer from a unilateral mild to severe hearing loss. Recent advances in MRI magnetic resonance imaging scan techniques have led to more frequent diagnosis of CPA arachnoid cysts and with a higher degree of certainty. These lesions have a characteristic location in the posterior-inferior aspect of the CPA below the facial and vestibulocochlear nerves.

Cerebellopontine angle cyst

At the time the article was last revised Ashesh Ishwarlal Ranchod had no financial relationships to ineligible companies to disclose. C erebellopontine angle CPA masses are relatively common. Although a diverse range of pathologies may be seen in this region, the most common by far is vestibular schwannoma. Cerebellopontine angle masses can be divided into four groups, based on imaging characteristics:. Please Note: You can also scroll through stacks with your mouse wheel or the keyboard arrow keys. Updating… Please wait. Unable to process the form. Check for errors and try again. Thank you for updating your details. Recent Edits.

Arachnoid cysts are benign developmental collections of cerebrospinal fluid CSF. Figure 1.

Federal government websites often end in. The site is secure. Arachnoid cysts are benign developmental collections of cerebrospinal fluid CSF. The cerebellopontine angle CPA arachnoid cysts are rare and often asymptomatic. The onset of symptoms and signs is usually due to the compression of the brain, cranial nerves and obstruction of CSF circulation. The major clinical symptoms for CPA arachnoid cysts were reported as headache, ataxia and 8 th cranial nerve palsy.

At the time the article was last revised Ashesh Ishwarlal Ranchod had no financial relationships to ineligible companies to disclose. C erebellopontine angle CPA masses are relatively common. Although a diverse range of pathologies may be seen in this region, the most common by far is vestibular schwannoma. Cerebellopontine angle masses can be divided into four groups, based on imaging characteristics:. Please Note: You can also scroll through stacks with your mouse wheel or the keyboard arrow keys. Updating… Please wait. Unable to process the form. Check for errors and try again.

Cerebellopontine angle cyst

Federal government websites often end in. Before sharing sensitive information, make sure you're on a federal government site. The site is secure. NCBI Bookshelf. Asad M. Lak ; Yusuf S. Authors Asad M. Lak 1 ; Yusuf S. Khan 2.

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The onset of symptoms and signs is usually due to the compression of the brain, cranial nerves and obstruction of CSF circulation. Case 9: meningioma Case 9: meningioma. Gaillard F, Arachnoid cyst - cerebellopontine angle. Year Archive Abstract Arachnoid cysts are benign developmental collections of cerebrospinal fluid CSF. About Recent Edits Go ad-free. We expect the disappearance of mirror movements by the end of first decade if it is physiologic. The ventricles are unremarkable in appearance with no evidence of a hydrocephalus. Content follows CSF on all sequences including diffusion-weighted imaging. Address for correspondence: Dr. Mirror movements are involuntary movements, which occur in a muscle group or limb on one side of the body in response to an intentionally performed movement in corresponding contralateral muscle group or limb. Arachnoid cyst of the cerebellopontine angle manifesting as contralateral trigeminal neuralgia: Case report.

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He had right facial weakness. A left-handed year-old boy presented to our pediatric neurology unit with complaints of right facial weakness for 1 day and abnormal hand movements since early childhood. Case 5: epidermoid Case 5: epidermoid. Case 2: acoustic schwannoma Case 2: acoustic schwannoma. Open in a separate window. Results: All patients underwent a retrosigmoid suboccipital craniotomy and microsurgical resection and fenestration of the cyst walls. Log in Sign up. Our patient had no previous history to suggest an etiology other than congenital and therefore we considered it as a congenital cyst. These clinical and radiological findings would support a conservative management approach to the majority of the arachnoid cysts. Abstract Arachnoid cysts are benign developmental collections of cerebrospinal fluid CSF. J Neurol. Abstract Objective: The optimal surgical management of arachnoid cysts remains controversial. Edit article.