KnowraPneumothoraxLinked fromLinked fromThe 8 pages that link to Pneumothorax, each with the reason it gives.All 8Broader topic 2Related 4Compared with 2PleuraBroader topic: Air entering the pleural space disrupts the pressure relationship that keeps the lung expanded.Stab woundBroader topic: A chest stab wound may let air enter the pleural space.