Frontal intersinus septal cells
Citation, DOI, disclosures and article data
Citation:
St-Amant M, Campos A, Bell D, Frontal intersinus septal cells. Reference article, Radiopaedia.org (Accessed on 21 Mar 2025) https://doi.org/10.53347/rID-59350
rID:
59350
Article created:
5 Apr 2018,
Maxime St-Amant ◉
Disclosures:
At the time the article was created Maxime St-Amant had no recorded disclosures.
View Maxime St-Amant's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Arlene Campos had no financial relationships to ineligible companies to disclose.
View Arlene Campos's current disclosures
Revisions:
4 times, by
3 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Interfrontal sinus septal air cells
- Interfrontal sinus septal air cell
- Interfrontal sinus septal cell
- Inter-frontal sinus septal cells
- Inter-frontal sinus septal cell
- Inter-frontal sinus septal air cell
- Inter-frontal sinus septal air cells
- Interfrontal sinus septal cells
- Frontal intersinus septal air cells
- Frontal intersinus septal air cell
Frontal intersinus septal cells, also known as interfrontal sinus septal cells, are a subtype of medial frontal recess cells.
On this page:
Gross anatomy
The frontal intersinus septal cells lie within the intersinus septum between the frontal sinuses. They usually drain in the medial aspect of the frontal recess.
When extensively pneumatised, aeration can extend to the crista galli.
Development
Their origin is debated; they were initially thought to originate from displaced ethmoid air cells from the frontal recess, but a study suggests that they are actually diverticula from the frontal sinuses 1.
Practical points
These cells should be identified and reported on pre-functional endoscopic sinus surgery imaging studies as they can impinge and obstruct the frontal ostium.
References
- 1. Som P & Lawson W. The Frontal Intersinus Septal Air Cell: A New Hypothesis of Its Origin. AJNR Am J Neuroradiol. 2008;29(6):1215-7. doi:10.3174/ajnr.A1057 - Pubmed
- 2. Huang B, Lloyd K, DelGaudio J, Jablonowski E, Hudgins P. Failed Endoscopic Sinus Surgery: Spectrum of CT Findings in the Frontal Recess. Radiographics. 2009;29(1):177-95. doi:10.1148/rg.291085118 - Pubmed
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