Examine the outer 2 cm of the lung fields.
Kerly B Lines, also known as Kerley B lines or Kerley's B lines, are a radiological sign seen on chest X-rays. They are a type of short, horizontal line at the lung periphery, typically seen in conditions that cause interstitial lung disease or pulmonary edema. kerly b lines
Kerley B lines are small, thin, horizontal lines visible near the outer edges of the lungs on a chest X-ray. They are typically less than 2 cm long, run perpendicular to the pleural surface (the lining of the lung), and are most commonly found in the costophrenic angles—the lowest corners of the lungs near the ribs and diaphragm. Examine the outer 2 cm of the lung fields