Facial colliculus

The facial colliculus is an elevation on the floor of the fourth ventricle and is not formed by the facial nerve nucleus, but by the fibers of the facial nerve arching backwards around the abducens nerve (CN VI) nucleus before turning forwards once more in the caudal pons.

Related pathology

A lesion involving the facial colliculus is, therefore, likely to result in facial colliculus syndrome by involving:

The facial colliculus may be symmetrically absent in horizontal gaze palsy with progressive scoliosis, giving a tent shape to the floor of the fourth ventricle.

Anatomy: Brain
Share article

Article information

rID: 1318
Section: Anatomy
Tag: cases
Synonyms or Alternate Spellings:
  • Facial colliculus

Support Radiopaedia and see fewer ads

Cases and figures

  • Figure 1
    Drag here to reorder.
  • Case 1: stroke - DWI
    Drag here to reorder.
  • Case 2: HGPPS
    Drag here to reorder.
  • Updating… Please wait.

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

     Thank you for updating your details.