Pineal parenchymal tumors

Last revised by Dr Yair Glick on 14 Oct 2021

Pineal parenchymal tumors comprise a group of related tumors ranging from the relatively benign to the highly malignant. There are four types in the WHO classification:

As you can tell from the proportions given above, there is wide variation in the reported figures from series to series, which probably reflects the overall rarity of these tumors (and thus small series) and variability in the grading and terminology used.

Terminology

The term pinealoma was historically used to refer to both pineal parenchymal tumors and germinomas 3. This term has since fallen in popularity in the last several decades.

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