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There is an aggressive soft tissue mass centered within the ethmoid sinuses, left greater than right. There is destruction of the septae within the ethmoid air cells and destruction of the horizontal plate of the ethmoid. There is involvement of the middle and superior turbinates bilaterally, left greater than right. There is destruction of the bilateral medial orbital walls. There is extension to the left medial canthus, medial and superior extraconal space and intraconal space. The left globe is displaced laterally and anteriorly, resulting in mild proptosis. There is a small soft tissue component in the right medial extraconal space. There is destruction of the anterior cranial fossa, with small intracranial component. There is no destructive changes of the foramen rotundum, pterygoid canal, or foramen ovale. There is no evidence of perineural spread.

There is complete opacification of the bilateral frontal sinuses.