Sylvian cistern

Dr Craig Hacking and Dr Owen Kang et al.

The Sylvian cistern, also known as the insular cistern, is one of the CSF-filled subarachnoid cisterns.

Gross anatomy

There are two paired cisterns on either side. It is the subarachnoid space extending into the fissure of the frontal and temporal lobes (i.e. the lateral sulcus). It therefore extends on the lateral surface of the cerebrum from the anterior perforated substance to the supramarginal gyrus, separating the frontal and parietal lobes from the temporal lobe as well as the insular cortex from its floor.

  • insular cortex (island of Reil)
  • opercular cortex: fronto-orbital, fronto-parietal and temporal

The cistern is intimately related to the sylvian fissure, insular cortex and the operculum.

Anatomy: Brain
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Article information

rID: 52310
Section: Anatomy
Synonyms or Alternate Spellings:
  • Insular cistern

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