There is a lobulated hypodensity within the parasagittal right frontal lobe anteriorly measuring approximately 20 x 6 x 16 mm (AP x TR x CC). It is predominantly subcortical but also involves the overlying cortex. There is no calcification. The inner table of the adjacent frontal bone is scalloped and mildly thinned. The appearances are suspicious for an underlying parenchymal lesion.
The rest of the brain demonstrates normal grey-white matter differentiation. No acute haemorrhage. There is no mass effect or midline shift. The ventricles, surface CSF spaces, and basal cisterns are normal in appearance.