Radiological characteristic of eCRS and CCAD. Representative CT scan images of eCRS, with complete opacification of ethmoids and diffuse mucosal involvement of the maxillary sinuses (A–C). This is in contrast to CCAD where there is a central focus of the mucosal disease due to middle turbinate polyposis. If the sinuses are involved, the roof or lateral wall tends to be relatively normal (D–F). Credit: © 2018 The American Laryngological, Rhinological and Otological Society, Inc.

Radiological characteristic of eCRS and CCAD. Representative CT scan images of eCRS, with complete opacification of ethmoids and diffuse mucosal involvement of the maxillary sinuses (A–C). This is in contrast to CCAD where there is a central focus of the mucosal disease due to middle turbinate polyposis. If the sinuses are involved, the roof or lateral wall tends to be relatively normal (D–F). Credit: © 2018 The American Laryngological, Rhinological and Otological Society, Inc.

Radiological characteristic of eCRS and CCAD. Representative CT scan images of eCRS, with complete opacification of ethmoids and diffuse mucosal involvement of the maxillary sinuses (A–C). This is in contrast to CCAD where there is a central focus of the mucosal disease due to middle turbinate polyposis. If the sinuses are involved, the roof or lateral wall tends to be relatively normal (D–F).

Credit: © 2018 The American Laryngological, Rhinological and Otological Society, Inc.

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