Intrinsic malignant glioma of the pineal gland.

The case of a 6-year-old girl who presented with a glioblastoma multiforme arising from the pineal gland is reported. Most so-called gliomas of the pineal region originate from neighbouring structures; authentic malignant gliomas of the pineal itself are extremely rare. This appears to be only the second fully documented case reported in the world literature.