tuber cinereum


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tuber cinereum

[′tü·bər si′ner·ē·əm]
(anatomy)
An area of gray matter extending from the optic chiasma to the mammillary bodies and forming part of the floor of the third ventricle.
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The tuber cinereum changes from a straight line into a caudal sagging shape.
The tuber cinereum typically buckles over the dorsum sella (a second characteristic sign of central incisural herniation), which creates a pocket of CSF within the lower third ventricle.
On the other hand, hamartomas associated with only precocious puberty were more frequently related with the tuber cinereum (Predominantly intraventricular versus predominantly interpeduncular).