Teenager with papilledema and vision loss

MRI of supratentorial ependymoma
Axial (above left) and coronal (above right) T1 MRI without contrast of the brain show a right hemispheric high signal intensity mass with mural nodules that is causing some mass effect to the left. The mass was also of high signal intensity on T2 MRI. Axial (below left) and coronal (below right) T1 MRI with contrast of the brain show enhancement of the mural nodules.

The diagnosis was ependymoma.