TY - JOUR T1 - Spontaneous mediastinal haematoma JF - BMJ Case Reports DO - 10.1136/bcr-2016-217799 VL - 2016 SP - bcr2016217799 AU - Yasuyuki Chida AU - Ryota Inokuchi AU - Tokiya Ishida AU - Kazuaki Shinohara Y1 - 2016/10/28 UR - http://casereports.bmj.com/content/2016/bcr-2016-217799.abstract N2 - A healthy man aged 32 years, with no notable family or medical history and no history of trauma, reported of sudden severe back pain on stretching and holding his breath while working at his desk. Apart from tachypnoea, his vital signs and physical examination were normal. A chest radiograph showed mediastinal widening (figure 1). Results of laboratory tests, including coagulation tests—prothrombin time, activated … ER -