Lung Sliding
Pleural line is found below the chest wall
Movement of pleura with breathing will generate the “lung sliding” sign
• Represents the sliding of the visceral pleura against the parietal pleura
• Using Color Flow (CF) can help identify the pleural line and its movement
• Best seen near the lung bases
• Can be absent in pneumothorax, atelectasis, pleurodesis, parietal emphysema or any cause that interrupts the normal pleural movement
• Lung sliding can sometimes be better evaluated with the M Mode generating the “Sea Shore” sign
• The presence of lung sliding and the sea shore sign, mostly rules out pneumothorax
