Marginal sulcus

Dr Craig Hacking and A.Prof Frank Gaillard et al.

The marginal sulcus, also known as pars marginalis, is the extension of the cingulate sulcus posterosuperiorly, separating the paracentral lobule from the precuneus of the parietal lobe on the medial surface of the cerebral hemispheres.

Practical point

On axial images it appears as a short sulcus, reaching the apex but not extending laterally. It is an excellent landmark to help confirm the location of the central sulcus, which is located one sulcus anterior to the marginal sulcus, on the other side of the postcentral gyrus.

Anatomy: Brain
Share article

Article information

rID: 31770
Synonyms or Alternate Spellings:
  • Marginal part of the cingulate sulcus
  • Pars marginalis

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
    Figure 1: illustration
    Drag here to reorder.
  • Drag
    Figure 2: annotated MRI axial
    Drag here to reorder.
  • Drag
    Figure 3: annotated MRI saggital
    Drag here to reorder.
  • Drag
    Figure 4: neuroanatomy: medial cortex (diagrams)
    Drag here to reorder.
  • Updating… Please wait.

    Alert accept

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

    Alert accept Thank you for updating your details.