Kerley C Lines _hot_ » 〈ORIGINAL〉

All Kerley lines are visual evidence of . The lungs are composed of tiny air sacs (alveoli) supported by a framework of connective tissue called the interstitium. This framework contains blood vessels and lymphatic channels.

Kerley C lines are caused by (fluid accumulation in the lung’s connective tissue framework). This occurs when:

They are the least common but most easily overlooked of the three types of Kerley lines (A, B, and C). kerley c lines

Short (1–2 cm) horizontal lines found at the periphery (edges) of the lungs, touching the pleura.

To understand where they fit, it helps to compare them to the other types: All Kerley lines are visual evidence of

are a reticular pattern of short, intersecting linear opacities in the lower and mid-lung zones on chest X-ray, caused by thickened interlobular septa due to interstitial pulmonary edema. They are most commonly seen in congestive heart failure but also occur in lymphangitic carcinomatosis and other interstitial lung diseases. Their presence indicates significant fluid overload and should prompt urgent evaluation and treatment of the underlying cardiopulmonary condition.

Chronic scarring of the lung tissue can create a permanent reticular pattern that mimics or manifests as C lines. Kerley C lines are caused by (fluid accumulation

Fluid distends the interlobular septa, making them visible on X-ray as fine linear densities. When multiple septae in different planes are thickened, they intersect to form the reticular pattern of Kerley C lines.