Fig. 13From: Flying through congested airspaces: imaging of chronic rhinosinusitisOstiomeatal complex pattern: the middle meatus (asterisk) and anterior ethmoid cells are occupied by tissue, the medial orbital wall appears slightly displaced (arrows). Mucus drainage from the ethmoid infundibulum and frontal recess is simultaneously hindered producing frontal and maxillary sinusitis (io infraorbital cell)Back to article page