📍 They represent thickened interlobular septa due to fluid, cells, or fibrosis. In acute settings, think: pulmonary edema (fluid in the septa).
#Radiology #ChestXRay #PulmonaryEdema #MedEd #FOAMrad kerley b lines
📍 Short, horizontal lines seen at the lung periphery (usually in the costophrenic angles). They are typically <2 cm long and extend to the pleural surface. 📍 They represent thickened interlobular septa due to