Purpose: A pneumatized middle turbinate is called concha bullosa. Bolger classified it in bulbous, lamellar, and extensive. Lamellar cells could have a variable extension. We propose the first radiologic classification of lamellar cells. Methods: 195 CT sinonasal scans were included in the study. Lamellar cells were classified into four categories according to their degree of aeration. Results: Lamellar cells were found in 47.7% of patients: unilateral in 14.9% of cases and bilateral in the remaining 32.8%. The most common lamellar cell is type 1, followed by types 3, 2, and 4; there were no statistically significant differences regarding side. A subgroup analysis was performed in 106 patients with no inflammatory diseases of the nasal cavity; there were no significant differences. Conclusion: Cell types 3 and 4 are a complete pneumatization of the insertion of the middle turbinate; these cells are rare and could be associated with middle turbinate instability.
CITATION STYLE
Calvo-Henríquez, C., Ruano-Ravina, A., Martinez-Capoccioni, G., Huaranca, M., Lattomus, K., & Martin-Martin, C. (2018). The lamellar cell: a radiological study and a new classification proposal. European Archives of Oto-Rhino-Laryngology, 275(11), 2713–2717. https://doi.org/10.1007/s00405-018-5111-4
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