A CPA tumor is a tumor that is in a very small part of your brain. To understand it, you need to know a little more about your brain.
The cerebellum is the part of your brain that is responsible for motor control. The cerebellum looks like a little attachment at the bottom of your brain. The cerebrum is the part of your brain that's the farthest forward. It's divided into left and right sections, called hemispheres.
The pons sits on your brain stem. The pons is very small; in fact it is less than 3 centimeters long. Its job is to carry signals from the cerebrum to the cerebellum.
The cerebellopontine angle is the space between the cerebellum and the pons. When a tumor develops here, it's called a cerebellopontine angle tumor. The name is usually shortened to CPA tumor.
A CPA tumor can affect lots of different functions, including:
CPA tumors are diagnosed through MRIs and CT scans. In addition, your doctor may do a hearing test and an ENG (electronystagmography) to test your balance.
Symptoms can include:
At the Vanderbilt Skull Base Center, otolaryngologists (ENT doctors) and neurosurgeons will work as a team to develop the best treatment plan for your CPA tumor. Usually surgery is recommended and is very effective.
Most CPAs are acoustic neuromas. An acoustic neuroma is a benign (non cancerous) tumor.