The tuber cinereum is a small grey bulge on the underside of the hypothalamus between the optic chiasm and the mammillary bodies. The pituitary stalk extends from it.
| Location | Base of the brain, between the optic chiasm in front and the mammillary bodies behind |
|---|---|
| Parts |
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| Connections |
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| Blood Supply | Posterior communicating artery and circle of Willis perforating branches |
Holds the hypothalamic areas that regulate pituitary hormones.
A hypothalamic hamartoma of the tuber cinereum can cause early puberty and gelastic (laughing) seizures. The area is also affected by craniopharyngiomas and other suprasellar tumours.
A benign malformation at the tuber cinereum causing precocious puberty or laughing seizures.
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