TY - JOUR T1 - Pneumothorax with torsion of the right upper lobe JF - Emergency Medicine Journal JO - Emerg Med J SP - 538 LP - 538 DO - 10.1136/emj.2007.057679 VL - 25 IS - 8 AU - R Mathew AU - R S Maroju Y1 - 2008/08/01 UR - http://emj.bmj.com/content/25/8/538.abstract N2 - The lobes of the lung are held in place by negative intrapleural pressure. In the presence of a large pneumothorax this support is removed and the upper lobe bronchus can bend under the weight of the lobe, resulting … ER -