Fig. 4From: Beyond bronchitis: a review of the congenital and acquired abnormalities of the bronchusCongenital pulmonary and bronchial malformation. a Illustrations demonstrating lobar bronchial malformations resulting in agenesis, aplasia, or hypoplasia as compared to normal. b Frontal chest x-ray demonstrating agenesis of the right mainstem bronchus and right lung (*); note the hyperexpanded left lung crossing the midline (triangle)Back to article page