• Initially, there is vascular redistribution—‘upper lobe diversion’.
• Then, interstitial fluid and Kerley lines (Kerley A lines are 2-6 cm long, extend from the hila; Kerley B lines are <2 cm long, peripheral extending to the pleural surface).
• Bilateral pleural effusions.
• Finally, airspace opacities indicating alveolar flooding.
- For Radiology Cases, Discussion join: Radiology Made Easy on Facebook
- Subscribe to our youtube channel for FRCR radiology case discussion
- Join our Telegram group: Radiology Made Easy