Epidermoid Cyst

Epidermoid cyst occur when a certain kind of tissue in an embryo, called ectodermal tissue, is misplaced in the developing brain. This causes the formation of a fluid-filled cyst, called an ectodermal inclusion cyst, that makes up the tumor. Epidermoid cyst usually develops in the spine, skull, scalp, or inside the brain.

Symptoms of epidermoid are associated with the size and location of the epidermoid cyst and its impact on surrounding tissues. Common symptoms can include:

• Headache
• Imbalance
• Seizure
• Pain in the face
• Weakness

Epidermoid cyst is diagnosed by obtaining special imaging such as MRI and CT scans to clearly show the extent of the cyst. Focused MRIs of the pituitary region, sinuses, temporal bones or internal auditory canals may be indicated to obtain better anatomical detail of an epidermoid cyst. Other tests may also be needed prior to surgery such as angiography (typically now performed as a CT angiogram or an MR angiogram).

Magnetic Resonance Imaging (MRI) – MRI shows the soft tissues of the body and gives clearer picture of the skull base and spine.
Computerized Tomography (CT Scan)- Combined CT scan and myleography produces image that clearly show both the bone structures of the spine and the nerve structures
Biopsy- Minimally invasive nature of fine needle aspiration biopsy may be required to confirm epidermoid cyst diagnosis.

Southern California’s ONE™ Brain $amp; Spine Center™ specializes in the treatment of epidermoid cyst with minimally invasive procedure Endoscopic Transsphenoidal Surgery. Southern California neurosurgeon Robert Louis, MD is trained and experienced in treating patients with epidermoid cyst using this technique.

Minimally Invasive Surgical Treatments

• Endoscopic Transsphenoidal Surgery- The endoscopic transsphenoidal surgical procedure uses a light called endoscope inserted into the nostril and sphenoid sinus to access and remove epidermoid cyst. The term transsphenoidal literally means “through the sphenoid sinus.”