Penetrating trauma is significantly less common, and has a much higher death rate, with up to 90% dying before arriving at the hospital. Gunshot wounds are associated with a higher death rates compared to stab wounds. In cases of penetrating trauma involving the heart, less than 1% survive. Complications
Complications can occur following a hemothorax, and are more likely to occur if the blood has not been adequately drained from the pleural cavity. Blood that remains within the pleural space can become infected, and is known as an empyema. It occurs in 3–4% of traumatic cases, and 27-33% of retained hemothoraces. It is more likely in people who develop shock, had a contaminated pleural space during the injury, persistent bronchopleural fistulae, and lung contusions. The likelihood of it can be reduced by keeping thoracostomy tubes sterile and by keeping the pleural surfaces close together to prevent fluid or blood from accumulating between the surfaces. The retained blood can irritate the pleura, causing scar tissue (adhesions) to form. If extensive, this scar tissue can encase the lung, restricting movement of the chest wall, and is then referred to as a fibrothorax. Less than 1 percent of cases go on to develop a fibrothorax. Cases with hemopneumothorax or infection more often develop fibrothorax. After the chest tube is removed, over 10% of cases develop pleural effusions that are mostly self-limited and leave no lasting complications. In such cases, thoracentesis is performed to eliminate the possibility of an infection being present.
He believes that he has been invited to be interviewed on television because he is a nice person, and is dismayed to learn that he has only been invited because the interviewer is curious about his unusual condition. The Dark Backward is a 1991 comedy film directed and written by Adam Rifkin, which features Judd Nelson as an unfunny garbage man who pursues a stand-up comedy career. When the "comedian" grows a third arm out of his back, he becomes an overnight hit. Justice, the main antagonist in the cartoon Afro Samurai, has a fully formed extra arm protruding from his right shoulder. Paco, a playable character in Brawlout, is a four-armed frog- and shark-like creature. Spiral, character in the X-Men stories of Marvel Comics, has six arms. A 6-armed Spider-Man frequently appears as an alternate reality incarnation of the character, and is sometimes referred to as "Polymelian". In the Mortal Kombat series, the Shokan is a race of humanoids known to have four arms. Ibid: A Life is a fictional biography of Jonathan Blashette, a man with three legs. Zaphod Beeblebrox, a character in Douglas Adams Hitchhikers Guide to the Galaxy, has a third arm as well as a second head. See also
Dipygus
Dysmelia
Polydactyly
Polysyndactyly
Supernumerary body parts

References
Sources
Avian Diseases, 1985 Jan-Mar; 29(1): pp. 244-5. Polymelia in a broiler chicken., Anderson WI, Langheinrich KA, McCaskey PC. : "A polymelus monster was observed in a 7-week-old slaughterhouse chicken. The supernumerary limbs were smaller than the normal appendages but contained an equal number of digits.".