Radiopaedia 2021 UPDATE Conference-only registration is now closed. Late registration for All-Access Pass and Free Country Pass holders ends this Friday - LEARN MORE

Sinus tympani

The sinus tympani of the petrous temporal bone is a small recess in the posterior wall of the mesotympanum medial to the pyramidal eminence and stapedius muscle origin. Lateral to the pyramidal eminence is the facial recess.

It is of surgical importance due to its invasion by cholesteatoma and difficulty in surgical visualization.

Anatomy: Head and neck

Anatomy: Head and neck

Article information

rID: 66685
System: Head & Neck
Section: Anatomy
Synonyms or Alternate Spellings:

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Case 1
    Drag here to reorder.
  • Updating… Please wait.

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

     Thank you for updating your details.