Septal Lines On - Chest X Ray

Radiologists categorize these lines based on their location and orientation:

In a patient with acute dyspnea, almost always point to elevated left atrial pressure (e.g., congestive heart failure), often appearing before overt alveolar edema (i.e., before diffuse airspace opacities). Their presence helps distinguish cardiogenic from noncardiogenic pulmonary edema (e.g., ARDS) – though not absolute, septal lines are much more common in cardiogenic causes. septal lines on chest x ray

These lines are a result of the thickening of the interlobular septa due to fluid accumulation or fibrosis. The presence of septal lines on a chest X-ray suggests that there may be an underlying condition affecting the lung interstitium. Radiologists categorize these lines based on their location