Figure 18: Contrast-enhanced CT of the midface with squamous cell carcinoma of the right maxillary sinus.
a) Axial image in bone window level setting. Complete opacification of the right maxillary sinus with tumor extension to the retromaxillary fossa (short arrow) and the nasal cavity. Infiltration of the medial wall of the maxillary sinus.
b) Infiltration of small bony structures can better be appreciated in bone window-level settings.