in the absence of focal obstructive lesions such as tuberculosis or neoplasm , one of the diffuse bronchial hypersecretory diseases , that is , bronchial asthma , acute or chronic bronchitis , asthmatic bronchitis , or cystic fibrosis , is prerequisite to the development of a clinical and radiologic syndrome , resulting from bronchial mucus retention .
C0006261
bronchial
C0004096
bronchial asthma