Head and Neck
All is true for Sternberg canal except (AIPG – 2009)
|A||Anterior and medial to foramen rotundum|
|B||Posterior and lateral to foramen rotundum|
|C||Cause of intra-sphenoidal meningocele|
|D||Can carry infection to sphenoidal sinus|
1. Sternberg’s canal is antero-medial to the foramen rotundum (a) and not postero-lateral (b).
2. It is situated at the attachment of posterior root of lesser wing to the body of sphenoid.
3. The canal lies was identified by Sternberg (1888) between the ossification centres of the 3 parts of sphenoid bone. His studies showed the constant presence of the canal in children at the age of 3-4 years and an incidence of 4% in adults.
4. Sternberg’s canal is the lateral cranio-pharyngeal canal connecting middle cranial fossa with the nasopharynx.
5. This canal is considered as the congenital origin for the intra-sphenoidal meningocele (c).
6. The Sternberg’s canal is in the para-sellar region of middle cranial fossa and communicates with the sphenoidal sinus as well as with the pterygopalatine fossa and/or the nasopharynx depending upon the course of the canal.