Radiopaedia 2021 UPDATE Conference-only registration is now closed. Late registration for All-Access Pass and Free Country Pass holders has been extended until Friday 30 July - LEARN MORE

Lateral apertures (of Luschka)

The lateral apertures (of Luschka) (also known as the foramina of Luschka) are two of the foramina in the ventricular system and link the fourth ventricle to the cerebellopontine cistern. Together with the median aperture (of Magendie) they comprise two of the three sites that CSF can leave the fourth ventricle and enter the subarachnoid space.

They are located at the lateral-most aspect of the fourth ventricle and drain into the subarachnoid space at the cerebellopontine angle cistern immediately posterior to the root of the glossopharyngeal (IX) nerve.

Related pathology

Choroid plexus can protrude through one or both of the foramina and simulate subarachnoid hemorrhage or a cerebellopontine angle (CPA) mass.

When the protruding choroid plexus is calcified, it is known as the Bochdalek flower basket.

Anatomy: Brain

Anatomy: Brain

Article information

rID: 5861
Section: Anatomy
Tag: refs, stub, stub, refs
Synonyms or Alternate Spellings:
  • Lateral aperture of Luschka
  • Lateral apertures of Luschka
  • Foramen of Luschka
  • Foramina of Luschka

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Figure 1
    Drag here to reorder.
  • Figure 2
    Drag here to reorder.
  • Figure 3: diagram of ventricular system
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.