An epidermoid cyst is a relatively uncommon, benign tumor that accounts for approximately 1% of all primary brain tumors. This type of tumor develops from epithelial (skin) cells and is most commonly found between the brainstem and the cerebellum (CP angle). The contents of the tumor often contain keratin (a protein), cellular debris, cholesterol, and occasional hair. These tumors are congenital (present at birth) but generally do not present with symptoms until later in life.

Symptoms

• Headache
• Double vision
• Weakness
• Imbalance
• Visual loss
• Seizures
• Trigeminal neuralgia
• Recurrent episodes of meningitis caused by rupture of the cyst

Who do epidermoid cysts usually affect?

How is an epidermoid cyst diagnosed?

• Magnetic resonance imaging (MRI)
• Computerized tomography (CT)

How is an epidermoid cyst treated?

Surgical removal – Large epidermoid cysts causing symptoms are treated by complete surgical removal. Since the tumor is benign, chemotherapy and radiation are not indicated.

The NeuroTexas Institute utilizes two advanced, specialized neurosurgical operating suites with the latest in image-guided technology. To learn more about the Brain Tumor Program at NeuroTexas Institute, click here.

What We Treat

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