Surgical and Radiologic Anatomy

, Volume 38, Issue 5, pp 609–613 | Cite as

Extension of the frontal sinus into the roof of the optic canal: a cadaveric case report

  • H. WechalekarEmail author
Anatomic Variations


This case reports a bilateral asymmetrical posterior extension of the frontal sinuses into the orbital roof with an unusual expansion into the roof of the optic canal in a 55-year-old male cadaver. The posterior extensions of the sinus were lined by mucoperiosteum and were separated from the underlying orbital contents and optic nerve by a thin plate of bone. This knowledge of an unusual anatomic variation of the frontal sinus may help understand better the ocular and intracranial complications associated with frontal sinus pathologies.


Anatomical variation Frontal sinus Orbital roof Optic canal 


Compliance with ethical standards

Conflict of interest

The author declares that there is no conflict of interest.


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Copyright information

© Springer-Verlag France 2015

Authors and Affiliations

  1. 1.Division of Health SciencesUniversity of South AustraliaAdelaideAustralia

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