The pleural space is defined by the visceral pleura, which covers the lung, and the parietal pleura, which covers the chest wall, diaphragm, and mediastinum. It is estimated that pleural effusion ...
A pleural friction rub is a raspy breathing sound caused by inflammation of the tissues around your lungs. The sound is usually “grating” or “creaky.” It’s also been compared to the sound of walking ...