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Expansile lesions in both frontal sinuses. On the right, this measures 3.6 cm, with bony destruction of the superior orbital wall measuring 2.3 cm. Further destruction measuring 3.2 cm of the floor of the anterior cranial fossa.
3.3 cm left-sided lesion with a 1.9 cm erosion in the left superior orbital wall. The anterior cranial fossa on the left is intact.
Extensive fluid in the ethmoidal sinuses.
Minor bilateral mucosal thickening in the maxillary sinuses. The sphenoid sinuses are normally aerated.