Perivascular space

Axial fat suppressed T2 weighted MRI image in the same patient as above demonstrating extensive dilated Type 2 perivascular spaces in the right hemisphere

A perivascular space, also known as a Virchow–Robin space, is an immunological space between an artery and a vein (not capillaries) and the pia mater that can be expanded by leukocytes. The spaces are formed when large vessels take the pia mater with them when they dive deep into the brain. The pia mater is reflected from the surface of the brain onto the surface of blood vessels in the subarachnoid space. Perivascular cuffs are regions of leukocyte aggregation in the spaces, usually found in patients with viral encephalitis.

单词	Perivascular cuffs
释义	Perivascular cuffs 英语百科 Perivascular space A perivascular space, also known as a Virchow–Robin space, is an immunological space between an artery and a vein (not capillaries) and the pia mater that can be expanded by leukocytes. The spaces are formed when large vessels take the pia mater with them when they dive deep into the brain. The pia mater is reflected from the surface of the brain onto the surface of blood vessels in the subarachnoid space. Perivascular cuffs are regions of leukocyte aggregation in the spaces, usually found in patients with viral encephalitis.
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