Definition of "pineoblastoma" [pineoblastoma]

• A tumor of the pineal gland. (noun)

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• "Furthermore, the phase 1 study in 16 patients showed the drug combination's significant effectiveness against the brain cancers medulloblastoma and pineoblastoma."
• ""One patient with recurrent medulloblastoma had his tumor shrink away, and one patient with pineoblastoma showed significant tumor shrinkage that persisted.""