Fig. 11From: Flying through congested airspaces: imaging of chronic rhinosinusitisSinusitis with infundibular pattern: the most proximal part of the ethmoid infundibulum (asterisks) is obstructed by thickened mucosa, the maxillary sinus is completely opacified by inflammatory material. Although large, the infraorbital cell (ioc)does not narrow the drainage pathwayBack to article page