Demographics:
43 years old, Female
Indication:
Headache
Findings
CT
- Nodularity along the ependymal surface of both lateral ventricles, which is similar in attenuation to gray matter
MRI
- Nodularity along the ependymal surface of both lateral ventricles, which follows gray matter signal on all sequences
- No corresponding enhancement or susceptibility artifact
- No substantial intracranial mass effect or evidence of hydrocephalus
- Left parietal developmental venous anomaly
- Prominent adenoids
Annotated Images & Illustrations
Multifocal nodular subependymal gray matter heterotopia (red arrows). Make sure not to mistake the caudate tails (yellow arrows) for gray matter heterotopia.
Diagnosis
Gray matter heterotopia
Key Imaging Features
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Differential Diagnosis
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Discussion
Pearls
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