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Interpeduncular cistern

Dr Craig Hacking and Dr Jeremy Jones et al.

The interpeduncular cistern (or basal cistern) is one of the subarachnoid cisterns. It is a wide cavity between the two temporal lobes anteriorly and encloses the cerebral peduncles as well as structures contained within the interpedunclar fossa. It is continuous anteriorly with the suprasellar cistern.

It contains the oculomotor nerve (CN III) and the terminal basilar artery (from the circle of Willis) and it's branches. It is continuous with the pontine cistern inferiorly and the remainder of the subarachnoid space.


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