Kerley C Lines ((install))

Kerley C lines are short, fine, spider-web-like opacities seen on a chest X-ray. Unlike their counterparts, they do not have a linear or directed appearance. Instead, they appear as a of thin lines crisscrossing the lung base.

| Feature | Kerley A Lines | Kerley B Lines | | |---------|---------------|----------------|---------------------| | Length | Long (2–6 cm) | Short (1–2 cm) | Short (1–2 cm) | | Orientation | Radial from hilum to periphery | Horizontal, perpendicular to pleura | Haphazard, reticular (criss-cross) | | Location | Upper/mid zones | Lower zones, peripheral | Diffuse lower/mid zones | | Pathophysiology | Thickened deep lymphatics & septa | Thickened peripheral septa | Intersecting thickened septa (multiple planes) | | Common cause | Chronic CHF, lymphangitic spread | Acute CHF | Moderate to severe interstitial edema | kerley c lines

This is the most frequent culprit. When the heart cannot pump efficiently, pressure builds in the pulmonary veins, forcing fluid into the interstitial spaces (pulmonary edema). Kerley C lines are short, fine, spider-web-like opacities

2.1. Pulmonary Features of HF in CXR * Phase 1—Redistribution in the Lung Vasculature. At first, cardiac failure leads to fluid re... MDPI Image:Kerley B Lines-MSD Manual Professional Edition Kerley B lines (arrows) are horizontal lines in the lung periphery that extend to the pleural surface. They denote thickened, edem... MSD Manuals 8 sites Finding Lung Kerley C Lines | The Common Vein Table_title: The Common Vein Ashley Davidoff MD Table_content: header: | Part A: Kerley C Lines – Finding | | row: | Part A: Kerle... The Common Vein Kerley's A, B, and C Lines | New England Journal of Medicine 09-Apr-2009 — | Feature | Kerley A Lines | Kerley

| Category | Specific Conditions | |----------|----------------------| | | Congestive heart failure (most common), mitral stenosis, cardiomyopathy | | Non-cardiogenic edema | ARDS, fluid overload, high-altitude pulmonary edema | | Interstitial lung disease | Lymphangitic carcinomatosis (breast, lung, stomach, prostate cancers), pulmonary fibrosis (early or mild), interstitial pneumonia | | Infectious | Viral pneumonia (less common) |