Fig. 2From: Flying through congested airspaces: imaging of chronic rhinosinusitisCoronal MSCT. The ostiomeatal complex is the functional area in which the anterior ethmoid cells, and the maxillary and frontal sinus drain. It is composed of the middle turbinate (pneumatised in this case, c), the uncinate process (arrowhead), the ethmoid bulla (b), the ethmoid infundibulum (arrow), and the frontal recess (asterisks)Back to article page