Septal lines in lung | Radiology Reference Article | Radiopaedia.org
: They are oriented perpendicular to the pleural surface and touch the edge of the lung. kerley b lines definition
Simply put, these lines appear when the tissues between the lung’s air sacs become swollen or filled with fluid, making them visible on an X-ray where they would normally be invisible. Septal lines in lung | Radiology Reference Article
Kerley B lines are specific radiopaque lines (appearing white on an X-ray) seen on a chest radiograph. They represent the thickening of the interlobular septa—the connective tissue walls that separate the secondary pulmonary lobules (the functional units of the lung). kerley b lines definition
The presence of Kerley B lines typically suggests that fluid, cells, or connective tissue have infiltrated the normally thin interlobular septa.