sequestration complexPulmonology The separation of an aberrant pulmonary lobe from the pulmonary parenchyma by pleura with a vascular supply arising directly from the aorta; the venous drainage is by the azygous or hemiazygous veins; SC is often associated with diaphragmatic hernias and GI malformations; lung tissue may be normal or inflamed. See Pulmonary sequestration. Cf Folded lung, Scimitar syndrome, Trapped lung.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.