a microscopic collection of particles, as of platelets, leukocytes, and fibrin, that occurs in stored blood.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
microaggregateA clump of neutrophils, platelets and fibrin, which can cause intravascular sludging and pulmonary insufficiency. Most microaggregates may be removed by 170-µm-diameter micropore filters.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
A small loose mass (20-120 mcm) of fibrin, degenerating platelets, white blood cells, or cellular debris that forms in blood stored in the refrigerator five days or longer. Special filters can be used to separate them during administration of the blood unit.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012