Fig. 4
Papillary tumour of the pineal region (PTPR) in a 6-year-old girl. A circumscribed lesion with well-defined margins is seen involving the pineal gland (arrow) with mass effect on the third ventricle and quadrigeminal plate. The tumour has intermediate to high signal on sagittal T1-weighted image (a) and axial T2-weighted image (b). The tumour shows heterogeneous contrast enhancement on axial T1-weighted image (c)