Document Detail

Coronal computed tomography analysis of frontal cells.
MedLine Citation:
PMID:  12862406     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Described by Schaefer in 1916, frontal cells have been implicated as a cause of frontal recess obstruction. In this cross-sectional study, we determine the prevalence of frontal cells and other anatomic variants and examine their relationships. METHODS: Coronal computed tomography scans of the sinuses performed from January 2000 to June 2001 were evaluated for frontal cells, other anatomic variants, and sinus disease. Of 1009 scans evaluated, 768 scans were included for data collection. Frontal cells were classified. RESULTS: In this population, 20.4% of individuals had frontal cells (14.9% had type I, 3.1% had type II, 1.7% had type III, and 2.1% had type IV). The presence of frontal cells was positively associated with hyperpneumatization of the frontal sinus (p = 0.01) and negatively associated with hypopneumatization of the frontal sinus (p < 0.01). Individuals with frontal cells had an increased prevalence of concha bullosa compared with individuals without frontal cells (41.4% versus 24.1%, p < 0.01). The prevalence of frontal mucosal thickening was increased in individuals with type III and type IV cells compared with individuals without frontal cells (38.5 and 69.0% versus 17.1%, p = 0.04 and p < 0.01). CONCLUSION: The prevalence of frontal cells among a population undergoing sinus computed tomography is 20.4%. Frontal cells are associated with other variants of sinonasal pneumatization and should be suspected when these variants are noted. The presence of frontal cells does not invariably lead to frontal sinusitis but may contribute to the mechanical obstruction of the frontal recess and should be appropriately addressed during the surgical management of frontal sinusitis.
Tanya K Meyer; Mehmet Kocak; Michelle M Smith; Timothy L Smith
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of rhinology     Volume:  17     ISSN:  1050-6586     ISO Abbreviation:  Am J Rhinol     Publication Date:    2003 May-Jun
Date Detail:
Created Date:  2003-07-16     Completed Date:  2003-09-10     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8807268     Medline TA:  Am J Rhinol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  163-8     Citation Subset:  IM    
Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA.
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MeSH Terms
Cross-Sectional Studies
Frontal Sinus / pathology,  physiopathology,  radiography*
Middle Aged
Paranasal Sinus Diseases / complications,  pathology,  physiopathology,  radiography*
Research Design
Tomography, X-Ray Computed* / methods

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