Enlarged perivascular spaces - corpus callosum
MRI performed for aneurysm follow-up.
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Selected images demonstrating prominent perivascular spaces, especially on the left and involving the left aspect of the body of the corpus callosum. The remainder brain is unremarkable.
Perivascular spaces, also known as Virchow-Robin spaces, are pial lined interstitial fluid-filled spaces that surround perforating vessels. Contrary to what was spotted in this case, the involvement tends to be symmetrical. Besides the small circle of Willis aneurysm (not shown), the patient does not have any other neurologic condition.