Concha bullosa- A retrospective computed tomographicstudy

Anatomic variations that narrow the osteomeatal complex can predispose it to obstruction in the presence of inflammation. One such variation is the pneumatization of the middle concha or concha bullosa. Sinonasal CT examinations of 100 patients were reviewed to determine the anatomic variation. Among the aforesaid scans we found the presence of concha bullosa in 45% of the cases of which 18 were bilateral. Concha bullosa is a common anatomical variant and CT of the paranasal sinus region is therefore an essential prerequisite prior to sinonasal surgeries.

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