Kerley B Line Jun 2026

They run perpendicular to the pleural surface and make direct contact with the lung edge.

The differential diagnosis for Kerley B lines includes:

Kerley B lines are short, horizontal lines at the lung periphery, representing interstitial edema. They are a sign of fluid accumulation in the lung interstitium. kerley b line

The diagnosis of Kerley B lines is based on chest X-ray findings, which should be interpreted in the context of clinical history and physical examination. The following criteria can help identify Kerley B lines:

Kerley B lines represent the physical manifestation of fluid or cellular infiltration within the subpleural interlobular septa. Unlike other linear patterns in the lung, Kerley B lines have distinct characteristics: They run perpendicular to the pleural surface and

Would you like a more detailed comparison between cardiogenic edema and lymphangitic carcinomatosis on imaging?

The causes of Kerley B lines include:

They are usually short—roughly 1 to 2 cm in length and less than 1 mm thick .

Kerley B lines are short, horizontal lines at the lung periphery, typically less than 1 cm in length, and usually seen in the lower lung zones. They represent interstitial edema and are a sign of fluid accumulation in the lung interstitium. These lines are often described as "dirty" lung borders, with a general haziness and lack of sharp definition. The diagnosis of Kerley B lines is based