Aplastic right A1 and bilateral fetal posterior communicating arteries on MRA

Case contributed by Ammar Ashraf
Diagnosis certain

Presentation

Multiple comorbidities with loss of consciousness. No acute infraction or hemorrhage on CT scan.

Patient Data

Age: 80 years
Gender: Male
This study is a stack
Axial
DWI
This study is a stack
Axial
ADC
This study is a stack
Axial
TOF MRA
This study is a stack
3D rotational
MIPs
This study is a stack
3D rotational
MIPs
Axial
MIP
Coronal
MIP
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Info

No recent infarction is seen. Non visualized/aplastic A1 segment of the right anterior cerebral artery and bilateral fetal posterior communicating arteries (anatomical variants).

No arterial occlusion, aneurysm, or vascular malformation is seen.

Case Discussion

Incidental finding of aplastic A1 segment of the right anterior cerebral artery (ACA) and bilateral fetal posterior communicating arteries which are anatomical variants.

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