- Orthodontic hardware related susceptibility artifact limits evaluation of the anterior cranial fossa and skull base on DWI and GRE sequences and also degrades the fluid suppression on FLAIR
- Subdural empyema, as evidenced by diffusion restricting fluid collection over the right frontotemporal convexity and along the falx cerebri
- Meningitis, as evidenced by diffusely increased leptomeningeal enhancement and areas of sulcal T2-FLAIR hyperintensity (allowing for CSF suppression failure in the anterior cranial vault)
- Early cerebritis, as evidenced by right anterior frontal lobe gyral swelling and T2 prolongation in the white matter
- Mass effect with 6 mm leftward midline shift and effacement of the right lateral ventricle