The posterior ethmoid cells and sphenoid sinus

Dharmbir S. Sethi, Boaz Forer

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


The paranasal sinuses are divided into two anatomical groups. The maxillary sinus, the frontal sinus and the anterior ethmoid cells form the anterior group. The posterior group includes the posterior ethmoid cells (PEC) and the sphenoid sinus. The posterior group is closely related to the orbital apex, optic nerve and the cavernous sinus. Although pathology in the posterior group is not as common as in the anterior group, disease in this cell complex may cause serious complications including impairment of vision, blindness, cranial nerve palsies and thrombophlebitis of the cavernous sinus.

Original languageEnglish
Title of host publicationPractical Rhinology
PublisherCRC Press
Number of pages15
ISBN (Electronic)9781444128727
ISBN (Print)9781444108613
StatePublished - 1 Jan 2010
Externally publishedYes

ASJC Scopus subject areas

  • General Medicine


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