Sigmoid plate

Andrew Murphy and A.Prof Frank Gaillard et al.

The sigmoid plate is variously described as the plate of bone between the jugular bulb and the middle ear cavity (as shown in first image) or more generally as the thin bone separating the sigmoid sinus from adjacent structures (especially mastoid air cells). In the case of the former, the structure is also referred to more specifically as the jugular wall, jugular floor, or jugular plate 1,2. In the case of the latter, the structure is also referred to as the sigmoid sinus plate 3.

Related pathology

Anatomy: Head and neck
Share article

Article information

rID: 2046
Section: Anatomy
Tag: stub, refs
Synonyms or Alternate Spellings:
  • sigmoid sinus plate
  • jugular wall
  • jugular floor
  • jugular plate

Support Radiopaedia and see fewer ads

Cases and figures

  • Figure 1: sigmoid plate
    Drag here to reorder.
  • Updating… Please wait.

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

     Thank you for updating your details.