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[Pneumatization of the middle nasal turbinate: a CT study].

Anatomic variations of the middle turbinate may be an important factor in the pathogenesis of inflammatory processes of the paranasal sinuses. A detailed analysis of coronal and axial plane CT scans of the paranasal sinuses obtained from 120 patients was performed. Paradoxical curve of the middle concha was detected in 24.2% of patients. Pneumatized middle turbinate was found in 42.5% and "true" concha bullosa in 8.3% of patients. Bilateral concha bullosa was found in 1.7% of patients.