MRI
Axial T1
Axial T1 C+
Axial T2
Axial FLAIR
Axial Gradient Echo
Axial DWI
Sagittal T1
Sagittal T1 C+
What features favour each?
The age group is good for both, but the lack of enhancement favours central neurocytoma. Haemorrhage is reported in both but is probably more frequent in ependymomas.
Within the body of the left lateral ventricle is a mass with heterogeneous signal on all sequences, and only faint irregular enhancement. The lateral ventricle does not follow CSF signal with signal drop out on gradient echo imaging consistent with blood.