How common are ependymomas?

How common are ependymomas?

Experts estimate that nearly 22 in 100,000 people have primary central nervous system tumors. Of all primary central nervous system tumor diagnoses, ependymomas make up:

• Less than 2% of adult diagnoses.
• Around 4% of diagnoses in children ages 15 to 19.
• Almost 6% of diagnoses in children from birth to 14.