Lesions and pseudolesions of the cavernous sinus and petrous apex

Otolaryngol Clin North Am. 2008 Feb;41(1):195-213, vii. doi: 10.1016/j.otc.2007.10.006.


Endoscopic surgery using an expanded endonasal approach now allows surgical access to an increasing range of parasellar, suprasellar, clivus, and petrous apex lesions. Accurate preoperative planning requires proper interpretation of CT and MRI results. It is essential to identify important anatomic landmarks and to recognize the appearance of common lesions and pseudolesions. Postoperative imaging must evaluate for residual tumors and identify iatrogenic conditions.

MeSH terms

  • Aneurysm / diagnosis
  • Bone Diseases / diagnosis*
  • Brain Diseases / diagnosis
  • Cavernous Sinus / innervation
  • Cavernous Sinus / pathology*
  • Cerebrovascular Disorders / diagnosis*
  • Humans
  • Magnetic Resonance Imaging / methods
  • Meningioma / diagnosis
  • Petrous Bone / blood supply
  • Petrous Bone / pathology*
  • Pituitary Neoplasms / diagnosis
  • Skull Base / pathology
  • Skull Neoplasms / diagnosis
  • Tomography, X-Ray Computed / methods