CT
Axial non-contrast
Coronal non-contrast
Sagittal non-contrast
Axial bone window
Small right parieto-occipital scalp haematoma. Subtle small acute haemorrhage within the right inferior frontal lobe (gyrus rectus) which is best seen on the coronal and sagittal reformats. The inferior frontal lobe is an important check area on CT brain as contusion in this area can be easily missed on axial images due to beam hardening and partial voluming at the floor of the anterior cranial fossa.