“Prominent Kerley A lines radiating from the hila in the upper lobes without lower zone septal lines. Given clinical history of acute dyspnea, this may represent .”
| Feature | Kerley A Lines | Kerley B Lines | | :--- | :--- | :--- | | | Thickening of deep interlobular septa. | Thickening of peripheral interlobular septa. | | Location | Central (lung apex to hilum). | Peripheral (lung bases, costophrenic angles). | | Orientation | Long, straight lines radiating outward. | Short, horizontal lines perpendicular to pleura. | | Appearance | Thin, non-branching, ~2–6 cm long. | Short, parallel, ~1–2 cm long. | | Clinical Association | Acute pulmonary edema, lymphangitis. | Subacute/Chronic edema, LV failure. | kerley a vs b lines
In the context of radiology and chest imaging, represent the appearance of interlobular septa on chest X-rays or CT scans. These lines are significant because they usually indicate the presence of pulmonary edema or lymphatic engorgement. “Prominent Kerley A lines radiating from the hila