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Fig. 5 | Insights into Imaging

Fig. 5

From: Magnetic resonance imaging of pineal region tumours

Fig. 5

Pineoblastoma in a 18-month-old boy. A well-circumscribed tumour arising from the pineal gland (arrow), which is isointense to grey matter on sagittal T1-weighted image (a), intermediate to high signal on axial T2-weighted image (b) and shows contrast enhancement on sagittal T1-weighted image (c). The tumour shows restricted diffusion as seen on diffusion-weighted image (d). The tumour causes obstructive hydrocephalus by exerting localised mass effect and compression of the quadrigeminal plate and cerebral aqueduct. Hydrogen MR spectroscopy at 1.5 T using a single voxel (2 × 2 × 2 cm3) acquisition with point resolved spectroscopy (PRESS) demonstrates elevated choline peak (*) and decreased NAA (**) (e). Corresponding T1-weighted image shows location of the voxel surrounding the tumour (f)

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