Fig. 8From: Magnetic resonance imaging of pineal region tumoursPineal yolk sac tumour. Tumour involving the pineal gland (arrow) has slightly lobulated margins. The tumour is isointense to grey matter on sagittal T1-weighted image (a), heterogeneous with low and high signal on axial T2-weighted image (b) and shows contrast enhancement on axial T1-weighted image (c)Back to article page