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 ...

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 ...

Once the dissection is completed to expose the vessels connecting the heart and lungs, the space between the lung and chest wall is opened decortication of the visceral pleura (membranous outer layer ...