Relier Pairs 3.26 Respiratory diseases mosaic (D)Version en ligne Diseases of the respiratory system par Emir Barajas 1 Lung cancer is the growth of malignant cells (tumor) in the respiratory tract. 2 Pulmonary emphysema is the dilatation of alveoli or the destruction of their walls. 3 Laryngitis: Inflamation of the larynx. 4 Allergic rhinitis: inflammation related to the inhalation of an allergen. 5 Asthma inflamates and narrows the respiratory airways, causing difficult breathing.