osis Systemic Symptoms Most common symptom is cough for more than two weeks (dry or productive) Expectoration can be mucoid , muco -purulent or blood tinged Chest pain ??? dull aching ??? usually due to pleural involvement Dyspnoea - not common but can be caused by pleural effusion, pneumothorax , collapse , fibrosis in advanced disease or global parenchymal destruction Haemoptysis ??? from blood