For everyday practice:
Spotting Kerley B lines changes management.
In simple terms, Kerley B lines are thin, linear opacities seen in the periphery of the lungs, most commonly near the costophrenic angles (the bottom corners of the lungs). kerley b
Look at the on an upright chest X-ray.
In heart failure, the left ventricle cannot effectively pump blood forward, causing pressure to back up into the left atrium, then the pulmonary veins, and finally into the lung interstitium. For everyday practice: Spotting Kerley B lines changes
To the untrained eye, a chest X-ray is a confusing jumble of ribs, vessels, and air. However, the lung is designed to be a vessel of air, appearing dark on an X-ray due to its radiolucency. The interstitium—the complex network of connective tissue that supports the lung's air sacs—is normally invisible. It is only when this network becomes engorged that it betrays its presence. This is where the Kerley B line earns its significance. These lines appear as short, white, horizontal streaks located at the periphery of the lung, typically near the base. They are distinct, usually about one to two centimeters in length, and abut the pleura, the lining of the lung.
If you see Kerley B lines, you should immediately think . The most common driver is: In heart failure, the left ventricle cannot effectively
If you’ve ever looked at a chest X-ray and seen a cluster of tiny, horizontal lines at the lung bases, you might have dismissed them as blood vessels or artifact. But to a trained eye, those little lines are a major red flag. They are called , and they are one of the most classic signs of an overworked heart and fluid-filled lungs.