<prompt> Curschmanns crystals are seen in -Bronchial asthmaBronchiectasisChronic bronchitisWegeners granulomatosis  <response>: Pathology of AsthmaGross -Lungs are overdistended because of overinflation and there may be a small area of atelectasis.The most striking macroscopic finding is occlusion of bronchi and bronchioles by thick tenacious mucus plugs.Histology -Characterized by the presence of numerous eosinophils and neutrophils.Curschmanns spiral - Whorls of shed epithelium in mucous plugs.Charcot -Leyden crystals - Collection of crystalloids made up of eosinophilic membrane protein.The other characteristic histological finding of Asthma is collectively called Airway remodelling, it includes -Thickening of the basement membrane of the bronchial epithelium.Edema and an inflammatory infiltrate in the bronchial walls with a prominence of eosinophils and mast cells.An increase in the size of submucosal glands.Hypertrophy of bronchial wall muscle.The airway remodelling contributes to airflow obstruction. 