Conventional radiographs show opacification of the frontal sinus, with bony discontinuity
anteriorly and extension into the anterior soft tissues.
CT images show additional maxillary and ethmoid sinus opacification with bony
thickening and irregularity.
Coronal CT images confirm the sinus opacification and gas liquid levels of infectious sinusitis.
Key words: infection inflammation
Frontal sinus abscess