Respiratory system Pathology

Atelectasis (Collapse) 

Acute Respiratory Distress Syndrome

Obstructive Lung (Airway) Diseases
a. Emphysema

b. Chronic Bronchitis 

c. Asthma

d. Bronchiectasis

Chronic Interstitial (Restrictive, Infiltrative) Lung Diseases
a. Fibrosing Diseases

b. Granulomatous Diseases

Pulmonary Diseases of Vascular Origin 
a. Pulmonary Embolism, Hemorrhage, and Infarction

b. Pulmonary Hypertension 

c. Diffuse Alveolar Hemorrhage Syndromes 

Pulmonary Infections

Lung Tumors 

Pleural Lesions 
a. Pleural Effusion and Pleuritis

b. Pneumothorax, Hemothorax, and Chylothorax

c. Malignant Mesothelioma 

Lesions of the Upper Respiratory Tract
a. Acute Infections

b. Nasopharyngeal Carcinoma

c. Laryngeal Tumors