Spinal vascular malformations (angiomas) and myelomalacia

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Abstract
In all the cases, there were leptomeningeal and perivascular inflammatory changes, marked in the patient who had the shortest acute clinical history, and slight in the others. In all cases, there were peculiar thick-walled veins, which may be identical with the so-called "arterialized" veins described by Cushing and Bailey in arteriovenous "aneurysms" and with the characteristic vessels described by Foix and Alajouanine in subacute necrotic myelitis. Such fistulous veins are practically pathognomonic of arteriovenous angiomas. They are by no means "arterialized," for they possess an elastica interna, a newly formed elastica superficialis, but scarcely and muscle cells. Their thick wall consists, as a matter of fact, only of connective tissue. The Foix-Alajouanine disease would then be an arteriovenous angioma, occasionally complicated by thrombophlebitis and other inflammatory changes.

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