The pleura is a two-layered membrane that covers the lung. Between the layers is a small amount of lubricating fluid, known as pleural fluid, which helps cushion the lung and reduce friction ...

The pleura now can be moved from the mediastinum. Once the upper portion of the lung is completely detached from the chest wall, the vessels entering the lung are exposed. On the left side, the ...

A pulmonary bleb is a small collection of air between the lung and the outer surface of the lung (visceral pleura) usually found in the upper lobe of the lung. When a bleb ruptures the air escapes ...