Pineoblastoma

Discussion:

MR picture diagnostic of pineoblastoma with hydrocephalic changes and transependymal CSF permeation and CSF seeding (pathologically proven).

Pineoblastomas tend to appear as sizable (>4 cm) irregular masses, often with evidence of invasion into adjacent brain. Typical signal characteristics include isointense to hypointense signal to the adjacent brain on T1 WI, isointense signal to the adjacent brain on T2 WI, with vivid heterogeneous enhancement. It also shows restricted diffusion due to dense cellular packing. Whole neural axis examination is mandatory as CSF seeding is seen in 45% of cases.

    Create a new playlist
Loading...