Introduction Kerley lines are linear opacities seen on chest radiographs, representing thickening of the interlobular septa due to fluid accumulation. They are most famously associated with pulmonary venous hypertension and interstitial edema . While Kerley B lines are the most recognized, Kerley C lines constitute a less frequently cited and more subtle pattern. Definition Kerley C lines are described as a fine reticular or honeycomb-like pattern of opacities, typically visible in the lower and mid-zones of both lungs. Unlike the well-defined, short, horizontal lines of Kerley B (found at the lung peripheries), Kerley C lines appear as a network of intersecting, thin lines—often likened to a “spiderweb” or “tram-track” mesh .

Kerley - C ((exclusive))

Introduction Kerley lines are linear opacities seen on chest radiographs, representing thickening of the interlobular septa due to fluid accumulation. They are most famously associated with pulmonary venous hypertension and interstitial edema . While Kerley B lines are the most recognized, Kerley C lines constitute a less frequently cited and more subtle pattern. Definition Kerley C lines are described as a fine reticular or honeycomb-like pattern of opacities, typically visible in the lower and mid-zones of both lungs. Unlike the well-defined, short, horizontal lines of Kerley B (found at the lung peripheries), Kerley C lines appear as a network of intersecting, thin lines—often likened to a “spiderweb” or “tram-track” mesh .