The orbits and visualised brain are unremarkable.
Destruction of the right hemimandible angle and body keeping with history of radionecrosis. Artefact from dental amalgam limits the assessment in this location. Within this limitation, no definite superficial or deep collection is identified in this location.
Saliva glands are symmetrical and unremarkable.
The thyroid glands are not enlarged. Bilateral hypodense nodules are non-specific on CT, it would be better assessed with ultrasound if clinically indicated.
Limited images of the lungs demonstrates extensive centrilobular emphysematous change, asymmetrical right apical scarring and left upper lobe 0.6 cm nodule. Comparison to prior imaging and clinical correlation is recommended. NGT in situ, distal extent not imaged.
Note is made of high-grade stenosis of the right carotid bulb and origin of the right ICA.
CONCLUSION: Right hemimandible osteoradionecrosis. Please note that superimposed osteomyelitis cannot be confirmed or excluded on imaging. No evidence of established collection. Clinical correlation advised.