Fig. 9
From: Clinical applications of diffusion weighted imaging in neuroradiology
Subacute haematoma. Right parietal mass (arrowhead) showing diffusion restriction within the core on DWI and ADC maps (a and b, respectively) and a ring-enhancing pattern on T1 post gadolinium (c). This was a subacute haematoma. Clinical context is important to differentiate haemorrhage from abscess. There is also a subacute ischaemic lesion in the inferior right frontal lobe (arrows) that shows early pseudonormalisation of the ADC and gyriform enhancement post gadolinium