bronchopulmonary sequestration


A congenital anomaly in which a mass of embryonic lung tissue becomes isolated from the rest of the lung with the bronchi in the mass usually being dilated or cystic and unconnected to the bronchial tree.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.