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skos:definition |
MSH: A congenital or acquired condition of underdeveloped or degeneration of CARTILAGE in the BRONCHI. This results in a floppy bronchial wall making patency difficult to maintain. It is characterized by wheezing and difficult breathing.,NCI: A congenital or acquired abnormality of the wall of the bronchi. In congenital cases, there is lack of rigidity in the cartilage of the bronchial wall. In acquired cases, the cartilage of the bronchial wall is degenerated, secondary to tracheostomy or presence of a breathing tube. Symptoms include noisy breathing and wheezing.
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