Variations of sphenoid sinus and their impact on related neurovascular structures

H. Mamatha, G. Saraswathi, L. C. Prasanna

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The sphenoid sinus is deeply seated in the skull and is the most inaccessible paranasal sinus intimately related to numerous vital neural and vascular structures. This work determines the incidence of the different anatomical variations of sphenoid sinus as detected by CT scan and their impact on related neurovascular structures, for the safe removal of inter sphenoid and pituitary lesions. The CT scan of 20 patients were reviewed regarding the different anatomical variations of the sphenoid sinus: degree of pneumatisation, protrusion of internal carotid artery (ICA), optic nerve (ON), and dehiscence of the walls of ICN and ON, and the septation pattern. There were 10 cases with protrusion and 9 cases of dehiscence of the bony wall on ICA, 13 cases of optic nerve protrusion and 10 cases of dehiscence. Sellar pneumatisation was present in majority of the patients (55%), with 5 patients having presellar (25%) and 4 patients having post sellar pneumatisation (20%). Different anatomical configurations of the sphenoid sinus can seriously affect the access to the sella via the nose. The surgeon should be aware of these findings preoperatively to reach the sella safely and effectively.

Original languageEnglish
Pages (from-to)121-124
Number of pages4
JournalCurrent Neurobiology
Volume1
Issue number2
Publication statusPublished - 10-2010

Fingerprint

Sphenoid Sinus
Optic Nerve
Internal Carotid Artery
Paranasal Sinuses
Nose
Skull
Blood Vessels
Incidence

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)

Cite this

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Variations of sphenoid sinus and their impact on related neurovascular structures. / Mamatha, H.; Saraswathi, G.; Prasanna, L. C.

In: Current Neurobiology, Vol. 1, No. 2, 10.2010, p. 121-124.

Research output: Contribution to journalArticle

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