Meaning of pineal region tumor: A type of brain tumor that occurs in or around the pineal gland, a tiny organ near the center of the brain.

Definition of pineal region tumor

A type of brain tumor that occurs in or around the pineal gland, a tiny organ near the center of the brain.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.