RT Journal Article SR Electronic T1 A 21-year-old woman with mediastinal mass and cardiac arrest JF BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr2013009020 DO 10.1136/bcr-2013-009020 VO 2013 A1 Ibrahim Al-Sanouri A1 Mohammad Shaban A1 Maie Al-Shahid A1 Salman Abdulaziz YR 2013 UL http://casereports.bmj.com/content/2013/bcr-2013-009020.abstract AB Mediastinal mass syndrome (MMS) is a devastating respiratory and haemodynamic condition that might be encountered postintubation if special precautions are not carefully undertaken. We describe a case of MMS in a 21-year-old woman with a fatal outcome following emergency intubation for acute respiratory failure.