Giant dilated perivascular spaces

Case contributed by Dr Nick Tarasov


Headaches, periodic vomiting, learning difficulties. Deep brain tumor suspected on CT.

Patient Data

Age: 8
Gender: Male

Left midbrain multilocular lesions that are isointense relative to CSF located at the cerebral peduncle and ventromedial thalamus without perifocal edema.

Mass effect to cisterna interpeduncularis and partially to end part of the 3th ventricle floor.

Minimal triventricular hydrocephalus, aqueduct of Sylvius slight displacement, tiny flow void artefact still present, seen on T2 axial images

The remainder of the brain appears normal.


Case Discussion

Specific findings of dilated perivascular spaces were revealed that excluded presence of tumor. It is uncertain why mild hydrocephalus exists, as CSF motion through aqueduct is present, on the other hand, there is evidence of 3th ventriclular narrowing and slight displacement of the aqueduct.


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Case information

rID: 51724
Published: 5th Mar 2017
Last edited: 6th Mar 2017
Inclusion in quiz mode: Included

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