Loading Stack -
0 images remaining
A lobulated heterogeneously enhancing tumour centred along the floor of the fourth ventricle demonstrates mild FLAIR hyperintensity with internal areas of FLAIR hypointensity/T2 hyperintensity, regions of mild T1 hyperintensity, and patchy susceptibility. Ao diffusion restriction. No surrounding oedema. It traverses foramen Magendie into the cisterna magna. No extension through either of the foramina of Luschka. There is some mass effect on the tegmentum of the medulla, but is no distortion of the fourth ventricle and no hydrocephalus. No enhancing abnormality elsewhere.
Conclusion: Solitary heterogeneous posterior fossa tumour with cystic components and hemorrhage/calcifcation, protruding through the foramen of Magendie, most likely an ependymoma.