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NCI Dictionary of Cancer Terms


pinealoma  listen  (PIH-nee-uh-LOH-muh)

  A type of brain tumor that forms in or around the pineal gland (a tiny organ near the center of the brain). Pinealomas may be benign (not cancer) or malignant (cancer). They include pineocytomas, pineoblastomas, and pineal germinomas. Also called pineal region tumor.