<prompt> Curschmann spirals are characteristic of which of the following airway disease?Chronic bronchitisEmphysemaAtelectasisBronchial asthma  <response>: Ref: Robbins Pathology, 9th ed. pg. 682Findings in Bronchial Asthma in Broncho-Alveolar Lavage or in Sputum Curschmann spirals, is a finding in bronchial asthma which may result from extrusion of mucus plugs from subepithelial mucous gland ducts or bronchioles. Charcot-Leyden crystals: It is composed of an eosinophilic protein called galectin-10.The other characteristic histologic findings of asthma, collectively called airway remodeling include: Airway wall thickening An increase in the size of the submucosal glands and number of airway goblet cells Subbasement membrane fibrosis due to deposition of type I and III collagen Increased vascularity Hypertrophy andor hyperplasia of the bronchial wall muscle 