![File:Lightbulb sign - posterior shoulder dislocation - Roe vor und nach Reposition 001.jpg - Wikimedia Commons File:Lightbulb sign - posterior shoulder dislocation - Roe vor und nach Reposition 001.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/b/be/Lightbulb_sign_-_posterior_shoulder_dislocation_-_Roe_vor_und_nach_Reposition_001.jpg)
File:Lightbulb sign - posterior shoulder dislocation - Roe vor und nach Reposition 001.jpg - Wikimedia Commons
![USMLE AID on Twitter: "Posterior dislocation of shoulder on XRay -Light bulb sign -Trough line sign -Rim sign http://t.co/YBR3AWL7rB #USMLE http://t.co/BOVvhHYpPx" / Twitter USMLE AID on Twitter: "Posterior dislocation of shoulder on XRay -Light bulb sign -Trough line sign -Rim sign http://t.co/YBR3AWL7rB #USMLE http://t.co/BOVvhHYpPx" / Twitter](https://pbs.twimg.com/media/Bq8Rw4aCUAIyTEB.png:large)
USMLE AID on Twitter: "Posterior dislocation of shoulder on XRay -Light bulb sign -Trough line sign -Rim sign http://t.co/YBR3AWL7rB #USMLE http://t.co/BOVvhHYpPx" / Twitter
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