The lung consists of the airspace (alveoli) and the interstitium (the supporting tissue). The interstitium contains the pulmonary lymphatic system, which is responsible for draining excess fluid from the lung tissues back into the central circulation.
While pulmonary edema is the most frequent cause, Kerley B lines are not exclusive to heart failure. They can result from any condition that causes the interlobular septa to thicken. cxr kerley b lines
Kerley B lines are a valuable radiological sign on CXR, indicating interstitial lung disease or edema. Their presence should prompt further evaluation and investigation to determine the underlying cause. By recognizing Kerley B lines, radiologists and clinicians can provide more accurate diagnoses and guide patient management. The lung consists of the airspace (alveoli) and