<unk>  (or<unk>  is an acute bleeding from the lung, from the upper respiratory tract and the trachea, and the pulmonary alveoli. When evident clinically, the condition is usually massive. The onset of<unk>  is characterized by a cough productive of blood (hemoptysis) and worsening of oxygenation leading to cyanosis. Treatment should be immediate and should include tracheal suction, oxygen, positive pressure ventilation, and correction of underlying abnormalities such as disorders of coagulation. A blood transfusion may be necessary.
Pulmonary hemorrhage
Pulmonary hematoma
Hemothorax
Pleurisy
Lung infarction
Pneumothorax
Urinothorax
Pleural effusion