Hallion's test

[äl-yôɴz]

n.

A test of collateral circulation in cases of aneurysm, in which the main artery and vein of a limb are compressed; the veins of the hand or foot swell up if the collateral circulation is impeded.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.