From the case:
Normal ostiomeatal complex (illustration)
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Normal ostiomeatal complex diagram. Note the paradoxical middle turbinate, concave towards the nasal septum. This is a fairly common anatomical variation.
Case Discussion
There is great anatomical variation when examining the morphology of the turbinates. In this illustration, a paradoxical middle turbinate is included, a fairly common finding (in one study seen in 33.7% 1). It is not, strictly speaking, "normal" and has been associated with narrowing of the middle nasal meatus and impeded drainage for the maxillary sinus through the ostiomeatal complex.
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