Presentation
Follow-up.
Patient Data
Ventricles, cisterns, and sulci normal.
Known pericallosal lipoma. The corpus callosum itself is normal.
No evidence of infarction or hemorrhage and no pathological enhancement after contrast injection.
Craniocervical junction normal.
MRA: azygos ACA, most probably associated with the aforementioned pericallosal lipoma, which envelops part of it. The rest of the intracranial arteries are of normal appearance. Hypoplastic right vertebral artery.
Right ocular coloboma.
Case Discussion
There is a known association of pericallosal lipoma with azygos ACA 1,2. Both intracranial arteries and intracranial lipomas develop quite early during gestation, which could explain their association, with both the ACA and the pericallosal lipoma being midline structures.
Unsurprisingly, all findings in this MRI study were unchanged compared to previous studies done 3 and 5 years prior.
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