<prompt> In hyaline membrane disease, the pathology in the lung consists of -Albumin and complementFibrinPrecipitated surfactantMucus  <response>: Morphological changes in ARDS Diffuse alveolar damage is the characteristic histological manifestation of ARDS.In the acute stage, the lungs are heavy, firm, red and boggy with congestion, interstitial and intra-alveolar edema.The alveolar walls become lined with a waxy haline membrane.The hyaline membrane consists of fibrin-rich edema fluid mixed with the cytoplasmic and lipid remnants of necrotic epithelial cells.Resolution is unusual, more commonly, there is an organization of the fibrin exudate, with resultant intra-alveolar fibrosis. 