There is a solid, well-defined intraventricular mass at the trigone of the left lateral ventricle, with macro lobulated contours, low T1 and high T2 signal compared to the adjacent brain, and showing relatively homogeneous but not vivid contrast enhancement. There is diffusion restriction when compared to the adjacent brain. No signs of haemorrhage or necrosis. A few small vessels noted within the lesion on the gradient sequence. The adjacent brain demonstrates vasogenic oedema.