Chest_Xray_Pulmonary_Oedema_Flashcards
(7 cards)
What are the typical chest X-ray features of pulmonary oedema?
Interstitial oedema, bat’s wing appearance, upper lobe diversion, Kerley B lines, pleural effusion, and cardiomegaly if cardiogenic.
What is meant by ‘interstitial oedema’ on chest X-ray?
Fluid accumulation in the lung interstitium, seen as hazy opacities or thickened interlobular septa.
What is the ‘bat’s wing’ appearance in pulmonary oedema?
Bilateral perihilar shadowing resembling the shape of a bat’s wings.
What is upper lobe diversion and when is it seen?
Increased blood flow to the upper lobes due to raised left atrial pressure; seen in pulmonary oedema.
What are Kerley B lines and what do they indicate?
Short horizontal lines at the lung periphery indicating interlobular septal thickening due to interstitial oedema.
Why might pleural effusion be seen in pulmonary oedema?
Due to fluid leaking into the pleural space secondary to raised hydrostatic pressure.
What does cardiomegaly on chest X-ray suggest in the context of pulmonary oedema?
A cardiogenic cause such as heart failure.
