Posterior injury of the brachiocephalic trunk following gunshot thoracic trauma: Case report and literature review Esteban Portilla-Rojas; Santiago A. Suárez-Gómez; Melissa Hernández-Hoyos; Daniela Bustamante-Socha; María J. Polanía-Medina; Santiago Bottia-Córdoba; Luis F. Cabrera-Vargas;